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參數(shù)資料
| 型號： | FAB2200UCX |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 1.2 W, 2 CHANNEL, AUDIO AMPLIFIER, PBGA25 |
| 封裝： | 0.40 MM PITCH, WLCSP-25 |
| 文件頁數(shù)： | 31/33頁 |
| 文件大?。?/td> | 948K |
| 代理商： | FAB2200UCX |
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2009 Fairchild Semiconductor Corporation
www.fairchildsemi.com
FAB2200 Rev. 1.0.1
7
FAB2200
—
Audio
Subsystem
with
St
ereo
Class-G
Headph
on
eAmplifier
Electrical Characteristics (Continued)
Unless otherwise noted: HPA uses stereo single-ended inputs, SPA uses differential input, unused inputs AC are
grounded, fIN = 1KHz, AGC off, PGAINxx = 0dB, HPxVOL = 0dB, PRESENTGAIN = 6dB, ERC = 1, SSMT = 000,
SHDNB = 1, SDB = 1.8V, SDA and SCL pull-up voltage = 1.8V, ZSPK = 8+68H, RHP = 32, speaker amplifier and
headphone amplifier on. Typical values are at VBATT = 3.7V, TA = 25°C. Minimum and maximum values are at VBATT =
2.80V to 5.25V, TA = -40°C to 85°C.
Symbol
Parameter
Conditions
Min. Typ. Max.
Unit
Headphone Amplifiers
IVBATT
Supply Current
IN1 and IN2 On,
IN3 and IN4 Off, DIFFIN43=1,
Speaker Amplifier Off
POUT = 2x50W
into 32
4.4
mA
POUT = 2x250W
into 32
5.8
POUT = 2x500W
into 32
6.8
VOS
Output Offset Voltage
HPxVOL = Mute
±0.15
mV
KCP
Click-and-Pop Level
Peak Voltage, A-Weighted,
32 Samples per Second,
HPxVOL = Mute,
Inputs AC Grounded
Into Shutdown
-70
dBV
Out of Shutdown
-70
PSRR
Power-Supply Rejection
Ratio
Inputs AC Grounded
VBATT = 2.8V to
5.25V
95
dB
f = 217Hz,
VRIPPLE =
200mVPP
95
f = 1KHz, VRIPPLE
= 200mVPP
95
POUT
Output Power
THD+N < 1%
RHP = 16
39
mW
RHP = 32
HPxVOL = 4dB
27
31
THD+N < 10%
RHP = 32
HPxVOL = 6dB
41
THD+N
Total Harmonic
Distortion Plus Noise
RHP = 32
, POUT = 20mW
0.010 0.075
%
RHP = 16
, POUT = 10mW
0.020
SNR
Signal-to-Noise Ratio
A-Weighted, POUT = 32mW,
Speaker Amplifier Off
HPxVOL = 4dB
DIFFINxx = 0
(Single-Ended)
95
100
dB
DIFFINxx = 1
(Differential)
100
A-Weighted, POUT = 32mW,
Speaker Amplifier On
HPxVOL = 4dB
DIFFINxx = 0
(Single-Ended)
100
DIFFINxx = 1
(Differential)
103
Output Noise
A-Weighted, Speaker Amplifier Off, DIFFINxx = 0
6.5
VRMS
CL
Capacitive Drive
100
pF
XTALK
Crosstalk
HPL to HPR, HPR to HPL, PO = 15mW
-85
dB
fP
Charge-Pump Frequency
1.3
MHz
AV
Headphone Gain
Accuracy
Across All Gain Stages
±0.4
dB
Channel-to-Channel
Gain Tracking
HPL to HPR, HPxVOL = 0dB
±0.3
%
Channel-to-Channel
Gain Tracking
HPL to HPR Across Entire Pre-Amplifier and
Volume Range
±1
%
Mute Attenuation
100
dB
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