TPA6138A2PW
Texas Instruments
IC AMP CLSS AB STER 40MW 14TSSOP
vorrätig82020 pcs
14-TSSOP
Bulk
TPA6138
40mW x 2 @ 32Ohm
3V ~ 3.6V
14-TSSOP (0.173", 4.40mm Width)
Depop, Differential Inputs, Mute, Short-Circuit Protection
Headphones, 2-Channel (Stereo)
Class AB
Surface Mount
-40°C ~ 85°C (TA)
DirectPath™
RFQ
TDA7266M
STMicroelectronics
IC AMP AB MONO 7W 15MULTIWATT
vorrätig10334 pcs
15-Multiwatt
Tube
TDA7266
7W x 1 @ 8Ohm
3V ~ 18V
Multiwatt-15 (Vertical, Bent and Staggered Leads)
Mute, Short-Circuit and Thermal Protection, Standby
1-Channel (Mono)
Class AB
Through Hole
0°C ~ 70°C (TA)
-
RFQ
STA510F
STMicroelectronics
IC AMP D MONO/STER 200W PWRSO-36
vorrätig11690 pcs
PowerSO-36
Tube
STA510
200W x 1 @ 4Ohm; 100W x 2 @ 8Ohm
10V ~ 40V
36-BSSOP (0.433", 11.00mm Width) Exposed Pad
Standby, Thermal Protection
1-Channel (Mono) or 2-Channel (Stereo)
Class D
Surface Mount
0°C ~ 70°C (TA)
-
RFQ
PAM8013AKR
Diodes Incorporated
IC AMP D MONO 3W U-FLGA1515-9
vorrätig178350 pcs
U-FLGA1515-9
Tape & Reel (TR)
PAM8013
3W x 1 @ 4Ohm
2.8V ~ 5.5V
9-UFLGA
Depop, Short-Circuit and Thermal Protection
1-Channel (Mono)
Class D
Surface Mount
-25°C ~ 85°C (TA)
-
RFQ
TPA3118D2DAP
Texas Instruments
IC AMP CLASS D STER 30W 32HTSSOP
vorrätig14838 pcs
32-HTSSOP
Tube
TPA3118
30W x 2 @ 8Ohm
4.5V ~ 26V
32-PowerTSSOP (0.240", 6.10mm Width)
Differential Inputs, Mute, Short-Circuit and Thermal Protection, Shutdown
2-Channel (Stereo)
Class D
Surface Mount
-40°C ~ 85°C (TA)
SpeakerGuard™
RFQ
MAX98358ETE+T
Analog Devices Inc./Maxim Integrated
IC AMP CLASS D MONO 3.2W 16TQFN
vorrätig17764 pcs
16-TQFN (3x3)
Tape & Reel (TR)
MAX98358
3.2W x 1 @ 4Ohm
2.5V ~ 5.5V
16-WFQFN Exposed Pad
Depop, Short-Circuit and Thermal Protection
1-Channel (Mono)
Class D
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
MAX9700BETB+T
Analog Devices Inc./Maxim Integrated
IC AMP CLASS D MONO 1.6W 10TDFN
vorrätig68050 pcs
10-TDFN (3x3)
Tape & Reel (TR)
MAX9700
1.6W x 1 @ 6Ohm
2.5V ~ 5.5V
10-WFDFN Exposed Pad
Depop, Differential Inputs, Short-Circuit and Thermal Protection, Shutdown
1-Channel (Mono)
Class D
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
TPA2000D2PWR
Texas Instruments
IC AMP CLASS D STEREO 2W 24TSSOP
vorrätig40020 pcs
24-TSSOP
Tape & Reel (TR)
TPA2000
2W x 2 @ 3Ohm
4.5V ~ 5.5V
24-TSSOP (0.173", 4.40mm Width)
Depop, Differential Inputs, Short-Circuit and Thermal Protection, Shutdown
2-Channel (Stereo)
Class D
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
TDA7498E
STMicroelectronics
IC AMP D MONO/STER 220W PWRSSO36
vorrätig12670 pcs
PowerSSO-36 EPU
Tube
TDA7498
220W x 1 @ 3Ohm; 160W x 2 @ 4Ohm
14V ~ 36V
36-PowerFSOP (0.295", 7.50mm Width)
Differential Inputs, Mute, Short-Circuit and Thermal Protection, Standby
1-Channel (Mono) or 2-Channel (Stereo)
Class D
Surface Mount
0°C ~ 70°C (TA)
-
RFQ
TDA7387
STMicroelectronics
IC AMP AB QUAD 41W 25FLEXIWATT
vorrätig12531 pcs
25-Flexiwatt (Vertical)
Tube
TDA7387
41W x 4 @ 4Ohm
-
25-Flexiwatt (Formed Leads)
-
4-Channel (Quad)
Class AB
Through Hole
-40°C ~ 105°C (TA)
-
RFQ
MAX9730ETI+
Analog Devices Inc./Maxim Integrated
IC AMP CLASS G MONO 2.4W 28TQFN
vorrätig16404 pcs
28-TQFN (5x5)
Tube
MAX9730
2.4W x 1 @ 8Ohm
2.7V ~ 5.5V
28-WFQFN Exposed Pad
Depop, Differential Inputs, Shutdown
1-Channel (Mono)
Class G
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
MAX13301AUM/V+
Analog Devices Inc./Maxim Integrated
IC AMP CLASS D QUAD 80W 48TSSOP
vorrätig11520 pcs
48-TSSOP-TOPEP
Tube
MAX133
80W x 4 @ 4Ohm
6V ~ 25.5V
48-TFSOP (0.240", 6.10mm Width) Exposed Pad
Depop, Short-Circuit and Thermal Protection
4-Channel (Quad)
Class D
Surface Mount
-40°C ~ 125°C (TA)
-
RFQ
TAS5630BPHDR
Texas Instruments
IC AMP D MONO/STER 480W 64HTQFP
vorrätig3215 pcs
64-HTQFP (14x14)
Tape & Reel (TR)
TAS5630
480W x 1 @ 2Ohm; 300W x 2 @ 4Ohm
25V ~ 52.5V
64-TQFP Exposed Pad
Depop, Differential Inputs, Short-Circuit and Thermal Protection, Shutdown
1-Channel (Mono) or 2-Channel (Stereo)
Class D
Surface Mount
0°C ~ 70°C (TA)
PurePath™ HD
RFQ
MAX9722BETE+T
Analog Devices Inc./Maxim Integrated
IC AMP CLSS AB STER 130MW 16TQFN
vorrätig44778 pcs
16-TQFN (3x3)
Tape & Reel (TR)
MAX9722
130mW x 2 @ 32Ohm
2.4V ~ 5.5V
16-WFQFN Exposed Pad
Depop, Differential Inputs, Short-Circuit and Thermal Protection, Shutdown
Headphones, 2-Channel (Stereo)
Class AB
Surface Mount
-40°C ~ 85°C (TA)
DirectDrive®
RFQ
TAS5186DDV
Texas Instruments
IC AMP D 6 CHAN 60W 44HTSSOP
vorrätig6210 pcs
44-HTSSOP
Tube
TAS518
60W x 1 @ 3Ohm; 30W x 5 @ 6Ohm
10.8V ~ 13.2V
44-PowerTSSOP (0.244", 6.20mm Width)
Digital Inputs, Short-Circuit and Thermal Protection, Shutdown
6-Channel
Class D
Surface Mount
0°C ~ 125°C (TJ)
PurePath Digital™
RFQ
MAX9725DETC+T
Analog Devices Inc./Maxim Integrated
IC AMP CLASS AB STER 25MW 12TQFN
vorrätig26691 pcs
12-TQFN (4x4)
Tape & Reel (TR)
MAX9725
25mW x 2 @ 16Ohm
900mV ~ 1.8V
12-WQFN Exposed Pad
Depop, Short-Circuit Protection, Shutdown
Headphones, 2-Channel (Stereo)
Class AB
Surface Mount
-40°C ~ 85°C (TA)
DirectDrive®
RFQ
TPA3003D2PFBR
Texas Instruments
IC AMP CLASS D STER 3.75W 48TQFP
vorrätig7565 pcs
48-TQFP (7x7)
Tape & Reel (TR)
TPA300
3.75W x 2 @ 8Ohm
8.5V ~ 14V
48-TQFP
Differential Inputs, Short-Circuit and Thermal Protection, Shutdown, Volume Control
2-Channel (Stereo)
Class D
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
TAS5103DAPR
Texas Instruments
IC AMP CLASS D STER 15W 32HTSSOP
vorrätig10060 pcs
32-HTSSOP
Tape & Reel (TR)
TAS5103
15W x 2 @ 8Ohm
8V ~ 23V
32-PowerTSSOP (0.240", 6.10mm Width)
Digital PWM Inputs, Short-Circuit and Thermal Protection
2-Channel (Stereo)
Class D
Surface Mount
0°C ~ 70°C (TA)
-
RFQ
TAS5182IDCA
Texas Instruments
IC AMP CLSS D STER 100W 56HTSSOP
vorrätig12080 pcs
56-HTSSOP
Tube
TAS518
100W x 2 @ 6Ohm
9V ~ 12.6V
56-TFSOP (0.240", 6.10mm Width) Exposed Pad
Digital Inputs, Short-Circuit and Thermal Protection, Shutdown
2-Channel (Stereo)
Class D
Surface Mount
-40°C ~ 85°C (TA)
PurePath Digital™
RFQ
TAS5414ATDKDRMQ1
Texas Instruments
IC AMP CLASS D QUAD 116W 36HSSOP
vorrätig15790 pcs
36-HSSOP
Tape & Reel (TR)
TAS5414
116W x 2 @ 2Ohm, 58W x 4 @ 4Ohm
8V ~ 22V
36-BSSOP (0.433", 11.00mm Width) Exposed Pad
Depop, I²C, Mute, Short-Circuit and Thermal Protection, Shutdown
4-Channel (Quad)
Class D
Surface Mount
-40°C ~ 105°C (TA)
Automotive, AEC-Q100
RFQ
TPA1517DWPR
Texas Instruments
IC AMP CLASS AB STER 6W 20SOPWR
vorrätig14751 pcs
20-HSOIC
Tape & Reel (TR)
TPA1517
6W x 2 @ 4Ohm
9.5V ~ 18V
20-SOIC (0.295", 7.50mm Width) Exposed Pad
Mute, Standby, Thermal Protection
2-Channel (Stereo)
Class AB
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
NJM386BD
Nisshinbo Micro Devices Inc.
IC AMP CLASS AB MONO 1W 8DIP
vorrätig10000 pcs
8-DIP
Tube
-
1W x 1 @ 32Ohm
4V ~ 18V
8-DIP (0.300", 7.62mm)
-
1-Channel (Mono)
Class AB
Through Hole
-40°C ~ 85°C (TA)
-
RFQ
TDA2822D013TR
STMicroelectronics
IC AMP CLASS AB MONO/STER 1W 8SO
vorrätig34998 pcs
8-SOIC
Tape & Reel (TR)
TDA2822
1W x 1 @ 32Ohm; 380mW x 2 @ 8Ohm
1.8V ~ 15V
8-SOIC (0.154", 3.90mm Width)
-
1-Channel (Mono) or 2-Channel (Stereo)
Class AB
Surface Mount
-40°C ~ 150°C (TJ)
-
RFQ
SSM2211CPZ-REEL
Analog Devices Inc.
IC AMP CLASS AB MONO 1.5W 8LFCSP
vorrätig21189 pcs
8-LFCSP (3x3)
Tape & Reel (TR)
SSM2211
1.5W x 1 @ 4Ohm
2.7V ~ 5.5V
8-WFDFN Exposed Pad, CSP
Differential Inputs, Shutdown
1-Channel (Mono)
Class AB
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
TPA102DGNR
Texas Instruments
IC AMP CLASS AB STER 70MW 8MSOP
vorrätig18713 pcs
8-HVSSOP
Tape & Reel (TR)
TPA102
70mW x 2 @ 8Ohm
2.5V ~ 5.5V
8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
Depop, Short-Circuit and Thermal Protection, Shutdown
Headphones, 2-Channel (Stereo)
Class AB
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
TDA2009A
STMicroelectronics
IC AMP AB STER 12.5W 11MULTIWATT
vorrätig4850 pcs
11-Multiwatt
Tube
TDA2009
12.5W x 2 @ 4Ohm
8V ~ 28V
Multiwatt-11 (Vertical, Bent and Staggered Leads)
Short-Circuit and Thermal Protection
2-Channel (Stereo)
Class AB
Through Hole
-40°C ~ 150°C (TJ)
-
RFQ
SSM3582ACPZ
Analog Devices Inc.
STEREO CHANNEL MID POWER CLASS D
vorrätig7450 pcs
40-LFCSP-WQ (6x6)
Tray
SSM3582
31.76W x 2 @ 4Ohm
4.5V ~ 16V
40-WFQFN Exposed Pad, CSP
-
2-Channel (Stereo)
Class D
Surface Mount
-40°C ~ 85°C
-
RFQ
TDA7297D13TR
STMicroelectronics
IC AMP AB STEREO 10W POWERSO-20
vorrätig7142 pcs
PowerSO-20
Tape & Reel (TR)
TDA7297
10W x 2 @ 8Ohm
6.5V ~ 18V
20-SOIC (0.433", 11.00mm Width) Exposed Pad
Mute, Short-Circuit and Thermal Protection, Standby
2-Channel (Stereo)
Class AB
Surface Mount
0°C ~ 70°C (TA)
-
RFQ
AD1991ASVZ
Analog Devices Inc.
IC AMP AUDIO PWR 40W STER 52TQFP
vorrätig3701 pcs
52-TQFP-EP (10x10)
Tray
AD1991
40W x 1 @ 4Ohm; 20W x 2 @ 8Ohm
6.5V ~ 22.5V
52-TQFP Exposed Pad
Depop, Mute, Short-Circuit and Thermal Protection
2-Channel (Stereo) or 4-Channel (Quad)
Class D
Surface Mount
-
-
RFQ
NCP2811BMTTXG
onsemi
IC AMP STEREO HEADPHONE 12WQFN
vorrätig8990 pcs
12-WQFN (3x3)
Tape & Reel (TR)
NCP2811
110mW x 2 @ 16Ohm
2.7V ~ 5V
12-VFQFN Exposed Pad
Depop, Short-Circuit and Thermal Protection, Shutdown
Headphones, 2-Channel (Stereo)
Class AB
Surface Mount
-
-
RFQ
MAX98302ETD+T
Analog Devices Inc./Maxim Integrated
IC AMP CLASS D STER 2.4W 14TDFN
vorrätig14250 pcs
14-TDFN (3x3)
Tape & Reel (TR)
MAX98302
2.4W x 2 @ 4Ohm
2.6V ~ 5.5V
14-WFDFN Exposed Pad
Depop, Differential Inputs, Short-Circuit and Thermal Protection, Shutdown
2-Channel (Stereo)
Class D
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
MAX4062EUB+
Analog Devices Inc./Maxim Integrated
IC AMP CLASS AB STEREO 10UMAX
vorrätig36530 pcs
10-uMAX/uSOP
Tube
MAX4062
-
2.4V ~ 5.5V
10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
Differential Inputs, Microphone
2-Channel (Stereo)
Class AB
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
TDA7491P13TR
STMicroelectronics
IC AMP D STEREO 10W POWERSSO36
vorrätig13521 pcs
PowerSSO-36
Tape & Reel (TR)
TDA7491
10W x 2 @ 6Ohm
5V ~ 18V
36-PowerBFSOP (0.295", 7.50mm Width)
Depop, Differential Inputs, Mute, Short-Circuit and Thermal Protection, Standby
2-Channel (Stereo)
Class D
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
MAX9850ETI+T
Analog Devices Inc./Maxim Integrated
IC AMP CLASS AB STER 95MW 28TQFN
vorrätig12136 pcs
28-TQFN (5x5)
Tape & Reel (TR)
MAX9850
95mW x 2 @ 16Ohm
1.8V ~ 3.6V
28-WFQFN Exposed Pad
DAC, Depop, Digital Inputs, I²C, I²S, Line Level Inputs and Outputs, Mute, Shutdown, Volume Control
Headphones, 2-Channel (Stereo)
Class AB
Surface Mount
-40°C ~ 85°C (TA)
DirectDrive®
RFQ
AS1703
ams-OSRAM USA INC.
IC AMP CLASS AB MONO 1.8W 10MSOP
vorrätig16030 pcs
10-MSOP
Tube
-
1.8W x 1 @ 4Ohm
2.7V ~ 5.5V
10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
Depop, Differential Inputs, Short-Circuit and Thermal Protection, Shutdown
1-Channel (Mono)
Class AB
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
NJM386M
Nisshinbo Micro Devices Inc.
IC AUDIO PWR AMP BIPO LV 8DMP
vorrätig14250 pcs
8-DMP
Tube
-
500mW x 1 @ 16Ohm, 325mW x 1 @ 8Ohm
4V ~ 12V
8-SOIC (0.197", 5.00mm Width)
-
1-Channel (Mono)
Class AB
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
TDA7851L
STMicroelectronics
IC AMP AB QUAD 75W 25FLEXIWATT
vorrätig12356 pcs
25-Flexiwatt (Vertical)
Tube
TDA7851
75W x 4 @ 2Ohm
8V ~ 18V
25-Flexiwatt (Formed Leads)
Mute, Short-Circuit and Thermal Protection, Standby
4-Channel (Quad)
Class AB
Through Hole
-40°C ~ 105°C (TA)
-
RFQ
TPA731DR
Texas Instruments
IC AMP CLASS AB MONO 700MW 8SOIC
vorrätig30710 pcs
8-SOIC
Tape & Reel (TR)
TPA731
700mW x 1 @ 8Ohm
2.5V ~ 5.5V
8-SOIC (0.154", 3.90mm Width)
Differential Inputs, Short-Circuit and Thermal Protection, Shutdown
1-Channel (Mono)
Class AB
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
TAS5111DADR
Texas Instruments
IC AMP CLASS D MONO 93W 32HTSSOP
vorrätig10560 pcs
32-HTSSOP
Tape & Reel (TR)
TAS511
93W x 1 @ 4Ohm
3V ~ 3.6V
32-PowerTSSOP (0.240", 6.10mm Width)
Digital Inputs, Mute, Short-Circuit and Thermal Protection, Shutdown
1-Channel (Mono)
Class D
Surface Mount
0°C ~ 70°C (TA)
PurePath Digital™
RFQ
AS1703-T
ams-OSRAM USA INC.
IC AMP CLASS AB MONO 1.8W 10MSOP
vorrätig15410 pcs
10-MSOP
Tape & Reel (TR)
AS1703
1.8W x 1 @ 4Ohm
2.7V ~ 5.5V
10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
Depop, Differential Inputs, Short-Circuit and Thermal Protection, Shutdown
1-Channel (Mono)
Class AB
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
TPA4411RTJT
Texas Instruments
IC AMP CLASS AB STER 100MW 20QFN
vorrätig23368 pcs
20-QFN (4x4)
Tape & Reel (TR)
TPA4411
100mW x 2 @ 16Ohm
1.8V ~ 4.5V
20-WFQFN Exposed Pad
Depop, Short-Circuit and Thermal Protection, Shutdown
Headphones, 2-Channel (Stereo)
Class AB
Surface Mount
-40°C ~ 85°C (TA)
DirectPath™
RFQ
TPA2050D4YZKT
Texas Instruments
IC AMP CLASS D STER 1.4W 25DSBGA
vorrätig7390 pcs
25-DSBGA
Tape & Reel (TR)
TPA205
1.4W x 2 @ 8Ohm
2.5V ~ 5.5V
25-UFBGA, DSBGA
Depop, Differential Inputs, I²C, Mute, Short-Circuit and Thermal Protection, Shutdown, Volume Control
2-Channel (Stereo) with Stereo Headphones
Class D
Surface Mount
-40°C ~ 85°C (TA)
DirectPath™
RFQ
SSM2019BRNZ
Analog Devices Inc.
IC AMP CLASS AB MONO 8SOIC
vorrätig9029 pcs
8-SOIC
Tube
SSM2019
-
10V ~ 36V, ±5V ~ 18V
8-SOIC (0.154", 3.90mm Width)
Differential Inputs
1-Channel (Mono)
Class AB
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
TPA6205A1DGN
Texas Instruments
IC AMP CLASS AB MONO 1.25W 8MSOP
vorrätig63400 pcs
8-HVSSOP
Tube
TPA6205
1.25W x 1 @ 8Ohm
2.5V ~ 5.5V
8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
Depop, Differential Inputs, Shutdown, Thermal Protection
1-Channel (Mono)
Class AB
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
TDA7376B
STMicroelectronics
IC AMP AB STEREO 40W 15MULTIWATT
vorrätig7808 pcs
15-Multiwatt
Tube
TDA7376
40W x 2 @ 4Ohm
8V ~ 18V
Multiwatt-15 (Vertical, Bent and Staggered Leads)
Depop, Differential Inputs, Mute, Short-Circuit and Thermal Protection, Standby
2-Channel (Stereo)
Class AB
Through Hole
-40°C ~ 105°C (TA)
-
RFQ
MAX4466EUK+T
Analog Devices Inc./Maxim Integrated
IC PREAMP MICROPHONE SOT23-5
vorrätig5580 pcs
SOT-23-5
Tape & Reel (TR)
MAX4466
-
2.4V ~ 5.5V
SC-74A, SOT-753
-
1-Channel (Mono)
Class AB
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
NCP4894FCT1G
onsemi
IC AMP AB MONO 1.8W 9FLIPCHIP
vorrätig14100 pcs
9-FlipChip (1.45x1.45)
Tape & Reel (TR)
NCP4894
1.8W x 1 @ 8Ohm
2.2V ~ 5.5V
9-WFBGA, FCBGA
Depop, Differential Inputs, Short-Circuit and Thermal Protection, Shutdown
1-Channel (Mono)
Class AB
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
LM386N-4
Texas Instruments
IC AMP CLASS AB MONO 1W 8DIP
vorrätig16560 pcs
8-PDIP
Tube
LM386
1W x 1 @ 32Ohm
5V ~ 18V
8-DIP (0.300", 7.62mm)
-
1-Channel (Mono)
Class AB
Through Hole
0°C ~ 70°C (TA)
-
RFQ
TPA0233DGQR
Texas Instruments
IC AMP CLASS AB MONO 2W 10MSOP
vorrätig31831 pcs
10-HVSSOP
Tape & Reel (TR)
TPA0233
2W x 1 @ 4Ohm; 92mW x 2 @ 32Ohm
2.5V ~ 5.5V
10-PowerTFSOP, 10-MSOP (0.118", 3.00mm Width)
Depop, Shutdown
1-Channel (Mono) with Stereo Headphones
Class AB
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
AAT5101IUR-T1
Skyworks Solutions Inc.
IC AMP CLASS D MONO 2.5W 9WLCSP
vorrätig9170 pcs
9-WLCSP (1.42x1.42)
Tape & Reel (TR)
-
2.5W x 1 @ 4Ohm
2.1V ~ 5.5V
9-WFBGA, WLCSP
Depop, Short-Circuit and Thermal Protection
1-Channel (Mono)
Class D
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ