NCP2811BFCCT1G
onsemi
IC AMP AB STER 110MW 12FLIPCHIP
Op voorraad124620 pcs
12-FlipChip (2x1.5)
Tape & Reel (TR)
NCP2811
110mW x 1 @ 16Ohm
2.7V ~ 5V
12-UFBGA, FCBGA
Depop, Differential Inputs, Shutdown, Thermal Protection
Headphones, 2-Channel (Stereo)
Class AB
Surface Mount
-40°C ~ 85°C (TA)
NOCAP™
RFQ
TDA7365
STMicroelectronics
IC AMP AB STEREO 9W 15MULTIWATT
Op voorraad10830 pcs
15-Multiwatt
Tube
TDA7365
9W x 2 @ 2Ohm
8V ~ 18V
Multiwatt-15 (Vertical, Bent and Staggered Leads)
Depop, Mute, Short-Circuit and Thermal Protection, Standby
2-Channel (Stereo)
Class AB
Through Hole
-40°C ~ 150°C (TJ)
-
RFQ
NCP4896FCT1G
onsemi
IC AMP AB MONO 1.08W 9FLIPCHIP
Op voorraad15010 pcs
9-FlipChip (1.45x1.45)
Tape & Reel (TR)
NCP4896
1.08W x 1 @ 8Ohm; 176mW x 1 @ 16Ohm
2.2V ~ 5.5V
9-WFBGA, FCBGA
Depop, Shutdown, Thermal Protection
1-Channel (Mono) with Mono Headphones
Class AB
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
MP1720DQ-9-LF-Z
Monolithic Power Systems Inc.
IC AMP CLASS D MONO 2.78W 10QFN
Op voorraad16470 pcs
10-QFN (3x3)
Tape & Reel (TR)
-
2.78W x 1 @ 4Ohm
2.5V ~ 5.5V
10-VFDFN Exposed Pad
Depop, Short-Circuit and Thermal Protection
1-Channel (Mono)
Class D
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
TDA7266S
STMicroelectronics
IC AMP AB STEREO 5W 15MULTIWATT
Op voorraad16340 pcs
15-Multiwatt
Tube
TDA7266
5W x 2 @ 8Ohm
3V ~ 18V
Multiwatt-15 (Vertical, Bent and Staggered Leads)
Mute, Short-Circuit and Thermal Protection, Standby
2-Channel (Stereo)
Class AB
Through Hole
0°C ~ 70°C (TA)
-
RFQ
MAX4411ETP+
Analog Devices Inc./Maxim Integrated
IC AMP CLASS AB STER 80MW 20TQFN
Op voorraad38752 pcs
20-TQFN (4x4)
Tray
MAX4411
80mW x 2 @ 16Ohm
1.8V ~ 3.6V
20-WFQFN Exposed Pad
Depop, Short-Circuit and Thermal Protection, Shutdown
Headphones, 2-Channel (Stereo)
Class AB
Surface Mount
-40°C ~ 85°C (TA)
DirectDrive®
RFQ
TPA6120A2DWP
Texas Instruments
IC AMP CLSS AB STER 80MW 20SOPWR
Op voorraad19485 pcs
20-HSOIC
Tube
TPA6120A2
80mW x 2 @ 600Ohm
10V ~ 30V, ±5V ~ 15V
20-SOIC (0.295", 7.50mm Width) Exposed Pad
Differential Inputs, Short-Circuit and Thermal Protection
Headphones, 2-Channel (Stereo)
Class AB
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
BH3544F-E2
Rohm Semiconductor
IC AMP CLASS AB STEREO 62MW 8SOP
Op voorraad60150 pcs
8-SOP
Tape & Reel (TR)
BH3544
62mW x 2 @ 16Ohm
2.8V ~ 6.5V
8-SOIC (0.173", 4.40mm Width)
Mute, Thermal Protection
Headphones, 2-Channel (Stereo)
Class AB
Surface Mount
-25°C ~ 75°C (TA)
-
RFQ
AS1701-T
ams-OSRAM USA INC.
IC AMP CLASS AB MONO 1.6W 8MSOP
Op voorraad7130 pcs
8-MSOP
Tape & Reel (TR)
-
1.6W x 1 @ 4Ohm
2.7V ~ 5.5V
8-TSSOP, 8-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
MAX9736AETJ+
Analog Devices Inc./Maxim Integrated
IC AMP D MONO/STEREO 35W 32TQFN
Op voorraad8354 pcs
32-TQFN (7x7)
Tube
MAX9736
35W x 1 @ 4Ohm; 17.5W x 2 @ 8Ohm
8V ~ 28V
32-WQFN Exposed Pad
Depop, Mute, Short-Circuit and Thermal Protection, Shutdown
1-Channel (Mono) or 2-Channel (Stereo)
Class D
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
TEA2025D
STMicroelectronics
IC AMP AB MONO/STEREO 4.7W 20SO
Op voorraad15930 pcs
20-SO
Tube
TEA2025
4.7W x 1 @ 8Ohm; 2.4W x 2 @ 8Ohm
3V ~ 12V
20-SOIC (0.295", 7.50mm Width)
Depop, Thermal Protection
1-Channel (Mono) or 2-Channel (Stereo)
Class AB
Surface Mount
-
-
RFQ
TPA0213DGQR
Texas Instruments
IC AMP CLASS AB MONO 2W 10MSOP
Op voorraad11611 pcs
10-HVSSOP
Tape & Reel (TR)
TPA0213
2W x 1 @ 4Ohm; 90mW x 2 @ 32Ohm
2.5V ~ 5.5V
10-PowerTFSOP, 10-MSOP (0.118", 3.00mm Width)
Depop, Input Multiplexer, Shutdown
1-Channel (Mono) with Stereo Headphones
Class AB
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
NCP2809ADMR2G
onsemi
IC AMP AB STEREO 135MW 10MICRO
Op voorraad5480 pcs
10-Micro
Tape & Reel (TR)
NCP2809
135mW x 2 @ 16Ohm
2.2V ~ 5.5V
10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
Depop, Short-Circuit and Thermal Protection, Shutdown
Headphones, 2-Channel (Stereo)
Class AB
Surface Mount
-40°C ~ 85°C (TA)
NOCAP™
RFQ
TAS2555YZT
Texas Instruments
IC AMP CLASS D MONO 5.7W 42DSBGA
Op voorraad13284 pcs
42-DSBGA
Tape & Reel (TR)
TAS2555
5.7W x1 @ 4Ohm
1.65V ~ 1.95V
42-UFBGA, DSBGA
Short-Circuit and Thermal Protection
1-Channel (Mono)
Class D
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
TPA302DR
Texas Instruments
IC AMP CLASS AB STER 300MW 8SOIC
Op voorraad17190 pcs
8-SOIC
Tape & Reel (TR)
TPA302
300mW x 2 @ 8Ohm
2.7V ~ 5.5V
8-SOIC (0.154", 3.90mm Width)
Short-Circuit and Thermal Protection, Shutdown
2-Channel (Stereo)
Class AB
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
TPA2033D1YZFR
Texas Instruments
IC AMP CLASS D MONO 2.75W 9DSBGA
Op voorraad91170 pcs
9-DSBGA
Tape & Reel (TR)
TPA2033
2.75W x 1 @ 4Ohm
2.5V ~ 5.5V
9-UFBGA, DSBGA
Depop, Differential Inputs, Short-Circuit and Thermal Protection, Shutdown
1-Channel (Mono)
Class D
Surface Mount
-40°C ~ 85°C (TA)
NanoFree™
RFQ
TPA3129D2DAP
Texas Instruments
IC AMP CLASS D STER 30W 32HTSSOP
Op voorraad30957 pcs
32-HTSSOP
Tube
TPA3129
30W x 2 @ 8Ohm
4.5V ~ 26V
32-PowerTSSOP (0.240", 6.10mm Width)
Short-Circuit and Thermal Protection
2-Channel (Stereo)
Class D
Surface Mount
-40°C ~ 85°C
-
RFQ
NJM386BM
Nisshinbo Micro Devices Inc.
IC AMP CLASS AB MONO 1W 8DMP
Op voorraad4120 pcs
8-DMP
Tube
-
1W x 1 @ 32Ohm
4V ~ 18V
8-SOIC (0.209", 5.30mm Width)
-
1-Channel (Mono)
Class AB
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
PAM8908JER
Diodes Incorporated
IC AMP CLASS AB STER 35MW 16TQFN
Op voorraad112620 pcs
U-QFN3030-16
Tape & Reel (TR)
PAM8908
35mW x 2 @ 16Ohm
2.5V ~ 5.5V
16-UFQFN Exposed Pad
Short-Circuit and Thermal Protection
2-Channel (Stereo) with Stereo Headphones
Class AB
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
SSM2305CPZ-REEL7
Analog Devices Inc.
IC AMP CLASS D MONO 2.8W 8LFCSP
Op voorraad28346 pcs
8-LFCSP (3x3)
Tape & Reel (TR)
SSM2305
2.8W x 1 @ 4Ohm
2.2V ~ 5.5V
8-WFDFN Exposed Pad, CSP
Depop, Differential Inputs, Short-Circuit and Thermal Protection, Shutdown
1-Channel (Mono)
Class D
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
TDA2822
STMicroelectronics
IC AMP AB MONO/STEREO 16POWERDIP
Op voorraad11940 pcs
16-PowerDIP
Tube
TDA2822
3.2W x 1 @ 8Ohm; 1.7W x 2 @ 4Ohm
3V ~ 15V
16-DIP (0.300", 7.62mm)
-
1-Channel (Mono) or 2-Channel (Stereo)
Class AB
Through Hole
-40°C ~ 150°C (TJ)
-
RFQ
MAX4063EUD+
Analog Devices Inc./Maxim Integrated
IC AMP CLASS AB STEREO 14TSSOP
Op voorraad9340 pcs
14-TSSOP
Tube
MAX4063
-
2.4V ~ 5.5V
14-TSSOP (0.173", 4.40mm Width)
Differential Inputs, Microphone, Shutdown
2-Channel (Stereo)
Class AB
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
TAS5825PRHBR
Texas Instruments
CLASS-D AUDIO AMPLIFIER
Op voorraad19271 pcs
32-VQFN (5x5)
Tape & Reel (TR)
TAS5825
38W x 1 @ 8Ohm, 17.8W x 2 @ 6Ohm
4.5V ~ 26.4V
32-VFQFN Exposed Pad
-
2-Channel (Stereo)
Class D
Surface Mount
-25°C ~ 85°C (TA)
-
RFQ
MAX9725EEBC+TG45
Analog Devices Inc./Maxim Integrated
IC AMP CLASS AB STER 25MW 12UCSP
Op voorraad8060 pcs
12-UCSP
Tape & Reel (TR)
MAX9725
25mW x 2 @ 16Ohm
900mV ~ 1.8V
12-WFBGA, CSPBGA
Depop, Short-Circuit Protection, Shutdown
Headphones, 2-Channel (Stereo)
Class AB
Surface Mount
-40°C ~ 85°C (TA)
DirectDrive®
RFQ
TPA2050D4YZKR
Texas Instruments
IC AMP CLASS D STER 1.4W 25DSBGA
Op voorraad19825 pcs
25-DSBGA
Tape & Reel (TR)
TPA2050
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
TPA3123D2PWPR
Texas Instruments
IC AMP CLASS D STER 25W 24HTSSOP
Op voorraad10590 pcs
24-HTSSOP
Tape & Reel (TR)
TPA3123
25W x 2 @ 4Ohm
10V ~ 30V
24-PowerTSSOP (0.173", 4.40mm Width)
Depop, Mute, Short-Circuit and Thermal Protection, Shutdown
2-Channel (Stereo)
Class D
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
STA50013TR
STMicroelectronics
IC AMP D DUAL/QUAD 60W PWRSO-36
Op voorraad4200 pcs
PowerSO-36
Tape & Reel (TR)
STA500
60W x 2 @ 8Ohm
10V ~ 36V
PowerSO-36 Exposed Bottom Pad
Short-Circuit and Thermal Protection
2-Channel (Stereo) or 4-Channel (Quad)
Class D
Surface Mount
0°C ~ 70°C (TA)
-
RFQ
MAX9768BETG+T
Analog Devices Inc./Maxim Integrated
IC AMP CLASS D MONO 10W 24TQFN
Op voorraad24954 pcs
24-TQFN (4x4)
Tape & Reel (TR)
MAX9768
10W x 1 @ 8Ohm
4.5V ~ 14V
24-WFQFN Exposed Pad
Depop, I²C, Mute, Short-Circuit and Thermal Protection, Shutdown, Volume Control
1-Channel (Mono)
Class D
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
TPA3245DDV
Texas Instruments
IC AMP CLSS D STER 115W 44HTSSOP
Op voorraad6635 pcs
44-HTSSOP
Tube
TPA3245
115W x 2 @ 2Ohm, 230W x 1 @ 4Ohm
12V ~ 30V
44-PowerTSSOP (0.244", 6.20mm Width)
Depop, Short-Circuit and Thermal Protection
2-Channel (Stereo)
Class D
Surface Mount
0°C ~ 70°C (TA)
PurePath™
RFQ
SSM2166SZ
Analog Devices Inc.
IC AMP CLASS AB MONO 14SOIC
Op voorraad6680 pcs
14-SOIC
Tube
SSM2166
-
4.5V ~ 5.5V
14-SOIC (0.154", 3.90mm Width)
Microphone
1-Channel (Mono)
Class AB
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
TDA2822D
STMicroelectronics
IC AMP CLASS AB MONO/STER 1W 8SO
Op voorraad37511 pcs
8-SOIC
Tube
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
TDA7564
STMicroelectronics
IC AMP AB QUAD 72W 25FLEXIWATT
Op voorraad8070 pcs
25-Flexiwatt (Vertical)
Tube
TDA7564
72W x 4 @ 2Ohm
8V ~ 18V
25-Flexiwatt (Formed Leads)
I²C, Mute, Short-Circuit and Thermal Protection, Standby
4-Channel (Quad)
Class AB
Through Hole
-55°C ~ 150°C (TJ)
-
RFQ
AD1992ACPZ
Analog Devices Inc.
IC AMP AUDIO PWR 10W 64LFCSP
Op voorraad7859 pcs
64-LFCSP-VQ (9x9)
Tray
AD1992
10W x 2 @ 4Ohm
4.5V ~ 5.5V
64-VFQFN Exposed Pad, CSP
Depop, Mute, Short-Circuit and Thermal Protection
2-Channel (Stereo)
Class D
Surface Mount
-
-
RFQ
TPA0202PWPR
Texas Instruments
IC AMP AB STEREO 2.2W 24HTSSOP
Op voorraad17447 pcs
24-HTSSOP
Tape & Reel (TR)
TPA0202
2.2W x 2 @ 3Ohm
3V ~ 5.5V
24-PowerTSSOP (0.173", 4.40mm Width)
Depop, Input Multiplexer, Mute, Shutdown, Thermal Protection
2-Channel (Stereo) with Stereo Headphones
Class AB
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
TAS5704PAPR
Texas Instruments
IC AMP D DUAL/QUAD 20.6W 64HTQFP
Op voorraad5437 pcs
64-HTQFP (10x10)
Tape & Reel (TR)
TAS5704
20.6W x 2 @ 8Ohm
10V ~ 26V
64-PowerTQFP
Digital Inputs, I²S, Mute, Short-Circuit and Thermal Protection, Shutdown
2-Channel (Stereo) or 4-Channel (Quad)
Class D
Surface Mount
0°C ~ 85°C (TA)
-
RFQ
NCP2890AFCT2
onsemi
IC AMP AB MONO 1.08W 9FLIPCHIP
Op voorraad7240 pcs
9-FlipChip (1.45x1.45)
Tape & Reel (TR)
NCP2890
1.08W 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
TAS2563YBGR
Texas Instruments
IC AUDIO OPAMP
Op voorraad24265 pcs
42-DSBGA (2.96x2.5)
Tape & Reel (TR)
TAS2563
-
-
42-XFBGA, DSBGA
-
-
-
Surface Mount
-
*
RFQ
LV47004P-E
onsemi
IC AMP CLASS AB QUAD 24W 25HZIP
Op voorraad14380 pcs
25-HZIP
Tape & Box (TB)
LV470
24W x 4 @ 4Ohm
9V ~ 16V
25-SSIP Exposed Pad, Formed Leads
Mute, Short-Circuit and Thermal Protection
4-Channel (Quad)
Class AB
Through Hole
-40°C ~ 85°C (TA)
-
RFQ
STA516B13TR
STMicroelectronics
IC AMP D MONO/STER 400W PWRSO-36
Op voorraad5376 pcs
PowerSO-36
Tape & Reel (TR)
STA516
400W x 1 @ 3Ohm; 200W x 2 @ 6Ohm
10V ~ 58V
36-BSSOP (0.433", 11.00mm Width) Exposed Pad
Short-Circuit and Thermal Protection, Standby
1-Channel (Mono) or 2-Channel (Stereo)
Class D
Surface Mount
0°C ~ 90°C (TA)
-
RFQ
TPA6205A1ZQVR
Texas Instruments
IC AMP CLASS AB MONO 1.25W 8BGA
Op voorraad11290 pcs
8-BGA Microstar Junior (2x2)
Tape & Reel (TR)
TPA620
1.25W x 1 @ 8Ohm
2.5V ~ 5.5V
8-VFBGA
Depop, Differential Inputs, Shutdown, Thermal Protection
1-Channel (Mono)
Class AB
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
TPA3111D1PWP
Texas Instruments
IC AMP CLASS D MONO 10W 28HTSSOP
Op voorraad34188 pcs
28-HTSSOP
Tube
TPA3111
10W x 1 @ 8Ohm
8V ~ 26V
28-PowerTSSOP (0.173", 4.40mm Width)
Depop, Differential Inputs, Short-Circuit and Thermal Protection, Shutdown
1-Channel (Mono)
Class D
Surface Mount
-40°C ~ 85°C (TA)
SpeakerGuard™
RFQ
NCP2820MUTBG
onsemi
IC AMP CLASS D MONO 2.65W 8UDFN
Op voorraad13880 pcs
8-UDFN (2x2.2)
Tape & Reel (TR)
NCP2820
2.65W x 1 @ 4Ohm
2.5V ~ 5.5V
8-UFDFN Exposed Pad
Depop, Differential Inputs, Short-Circuit and Thermal Protection, Shutdown
1-Channel (Mono)
Class D
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
MAX9706ETX+
Analog Devices Inc./Maxim Integrated
IC AMP CLASS D STER 2.3W 36TQFN
Op voorraad12700 pcs
36-TQFN (6x6)
Tube
MAX9706
2.3W x 3 @ 4Ohm; 95mW x 2 @ 16Ohm
4.5V ~ 5.5V
36-WFQFN Exposed Pad
Depop, Short-Circuit and Thermal Protection, Shutdown
2-Channel (Stereo) with Stereo Headphones and Subwoofer
Class D
Surface Mount
-40°C ~ 85°C (TA)
DirectDrive®
RFQ
STPA008-4WX
STMicroelectronics
IC AMP AB QUAD 50W 25FLEXIWATT
Op voorraad6462 pcs
25-Flexiwatt (Vertical)
Tube
STPA008
50W x 4 @ 4Ohm
-
25-Flexiwatt (Formed Leads)
Short-Circuit and Thermal Protection
4-Channel (Quad)
Class AB
Through Hole
-
Automotive, AEC-Q100
RFQ
TAS5121DKD
Texas Instruments
IC AMP CLASS D MONO 100W 36HSSOP
Op voorraad7848 pcs
36-HSSOP
Tube
TAS512
100W x 1 @ 4Ohm
10.8V ~ 13.2V
36-BSSOP (0.433", 11.00mm Width) Exposed Pad
Digital Inputs, Short-Circuit and Thermal Protection, Shutdown
1-Channel (Mono)
Class D
Surface Mount
0°C ~ 70°C (TA)
PurePath Digital™
RFQ
TPA6203A1DRBR
Texas Instruments
IC AMP CLASS AB MONO 1.25W 8SON
Op voorraad90840 pcs
8-SON (3x3)
Tape & Reel (TR)
TPA6203
1.25W x 1 @ 8Ohm
2.5V ~ 5.5V
8-VDFN Exposed Pad
Depop, Differential Inputs, Shutdown, Thermal Protection
1-Channel (Mono)
Class AB
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
MAX98358ETE+T
Analog Devices Inc./Maxim Integrated
IC AMP CLASS D MONO 3.2W 16TQFN
Op voorraad17764 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
SSM2306CPZ-REEL7
Analog Devices Inc.
IC AMP CLASS D STER 2.4W 16LFCSP
Op voorraad6140 pcs
16-LFCSP-WQ (3x3)
Tape & Reel (TR)
SSM2306
2.4W x 2 @ 4Ohm
2.5V ~ 5V
16-WFQFN Exposed Pad, CSP
Depop, Differential Inputs, Short-Circuit and Thermal Protection, Shutdown
2-Channel (Stereo)
Class D
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
TDA7451
STMicroelectronics
IC AMP AB DUAL/QUAD 25FLEXIWATT
Op voorraad14380 pcs
25-Flexiwatt (Vertical)
Tube
TDA7451
32W x 2 @ 4Ohm; 9.5W x 4 @ 4Ohm
-
25-Flexiwatt (Formed Leads)
Depop, Mute, Short-Circuit and Thermal Protection, Standby
2-Channel (Stereo) or 4-Channel (Quad)
Class AB
Through Hole
-40°C ~ 150°C (TJ)
-
RFQ
FPA6101MTCX
onsemi
IC AMP CLSS AB STER 2.4W 28TSSOP
Op voorraad12450 pcs
28-TSSOP
Tape & Reel (TR)
FPA610
2.4W x 2 @ 4Ohm; 200mW x 2 @ 16Ohm
4.5V ~ 5.5V
28-TSSOP (0.173", 4.40mm Width)
Depop, Short-Circuit and Thermal Protection, Shutdown
2-Channel (Stereo) with Stereo Headphones
Class AB
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ