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参数资料
| 型号： | TPA6045A4CRHB |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 2.6 W, 2 CHANNEL, AUDIO AMPLIFIER, PQCC32 |
| 封装： | QFN-32 |
| 文件页数： | 27/30页 |
| 文件大小： | 1147K |
| 代理商： | TPA6045A4CRHB |
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HEADPHONE AMPLIFIER DC ELECTRICAL CHARACTERISTICS
HEADPHONE AMPLIFIER AC CHARACTERISTICS
LDO CHARACTERISTICS
SLOS614 – OCTOBER 2008.............................................................................................................................................................................................. www.ti.com
SPEAKER AMPLIFIER AC CHARACTERISTICS (continued)
TA = 25°C, VDD = SPVDD = 5 V, RL = 4 , Gain = 10 dB (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Start-up time from shutdown
CBYPASS = 0.47
F
25
ms
TA = 25°C, HPVDD = CPVDD = VDD = 5 V, RL = 16 (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
| VOS |
Output offset voltage
Inputs grounded
1
3
mV
PSRR
Power supply rejection ratio
HPVDD = 4.5 V to 5.5 V
–75
–100
dB
TA = 25°C, HPVDD = 5 V, RL = 16 (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
THD+N = 10%, RL = 16 , f = 1 kHz
200
PO
Output power (outputs in phase)
mW
THD+N = 10%, RL = 32 , f = 1 kHz
100
PO = 85 mW, f = 20 Hz to 20 kHz,
0.03%
RL = 16
THD+N
Total harmonic distortion plus noise
PO = 50 mW, f = 20 Hz to 20 kHz,
0.04%
RL = 32
Dynamic Range with Signal Present
A-Weighted, f = 20 Hz to 20 kHz
–100
dB FS
kSVR
Supply ripple rejection ratio
f = 1 kHz, 200-mVPP ripple
-60
dB
Crosstalk
Po = 35 mW, f = 20 Hz to 20 kHz
-80
dB
SNR
Signal-to-noise ratio
Maximum output at THD+N 1%, f = 1 kHz
95
dB
Vn
Noise output voltage
f = 20 Hz to 20 kHz, No weighting
20
Vrms
ZI
Input Impedance
15
20
k
Gain
Closed-loop voltage gain
RL = 16
–1.45
–1.5
–1.55
V/V
Start-up time from shutdown
7.5
ms
TA = 25°C, VDD = 5 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VI
Input voltage
VDD
4.5
5.5
V
IO
Continuous output current
120
mA
VO
Output voltage
0 < IO < 120 mA; 4.9 V < Vin < 5.5 V
3.2
3.3
3.4
V
Line regulation
IL = 5 mA; 4.9 V < Vin < 5.5 V
1.8
10
mV
Load regulation
IL = 0 – 120 mA, Vin = 5 V
0.13
0.23
mV/ mA
Power supply ripple rejection
VDD = 4.9 V, IL = 10 mA
f = 100 Hz
-46
dB
6
Copyright 2008, Texas Instruments Incorporated
Product Folder Link(s): TPA6045A4C
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