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参数资料
型号： TPA2012D2RTJRG4
厂商： TEXAS INSTRUMENTS INC
元件分类： 音频／视频放大
英文描述： 2.1 W, 2 CHANNEL, AUDIO AMPLIFIER, PQCC20
封装： 4 X 4 MM, GREEN, PLASTIC, QFN-20
文件页数： 16/22页
文件大小： 785K
代理商： TPA2012D2RTJRG4
ELECTRICAL CHARACTERISTICS
OPERATING CHARACTERISTICS
TPA2012D2
www.ti.com .................................................................................................................................................. SLOS438D – DECEMBER 2004 – REVISED JUNE 2008
TA = 25°C (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Inputs ac grounded, AV = 6 dB,
|VOO|
Output offset voltage (measured differentially)
5
25
mV
VDD = 2.5 to 5.5 V
PSRR
Power supply rejection ratio
VDD = 2.5 to 5.5 V
–75
–55
dB
Vicm
Common-mode input voltage
0.5
VDD–0.8
V
Inputs shorted together,
CMRR
Common-mode rejection ration
–69
–50
dB
VDD = 2.5 to 5.5 V
|IIH|
High-level input current
VDD = 5.5 V, VI = VDD
50
A
|IIL|
Low-level input current
VDD = 5.5 V, VI = 0 V
5
A
VDD = 5.5 V, No load or output filter
6
9
VDD = 3.6 V, No load or output filter
5
7.5
mA
IDD
Supply current
VDD = 2.5 V, No load or output filter
4
6
Shutdown mode
1.5
A
VDD = 5.5 V
500
rDS(on)
Static drain-source on-state resistance
VDD = 3.6 V
570
m
VDD = 2.5 V
700
Output impedance in shutdown mode
V(SDR, SDL)= 0.35 V
2
k
f(sw)
Switching frequency
VDD = 2.5 V to 5.5 V
250
300
350
kHz
G0, G1 = 0.35 V
5.5
6
6.5
G0 = VDD, G1 = 0.35 V
11.5
12
12.5
Closed-loop voltage gain
dB
G0 = 0.35 V, G1 = VDD
17.5
18
18.5
G0, G1 = VDD
23.5
24
24.5
TA = 25°C, RL = 8 (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VDD = 5.0 V, f = 1 kHz, THD = 10%
1.4
RL = 8
PO
Output power (per channel)
VDD = 3.6 V, f = 1 kHz, THD = 10%
0.72
W
RL = 4
VDD = 5.0 V, f = 1 kHz, THD = 10%
2.1
PO = 1 W, VDD = 5 V, AV = 6 dB,
f = 1 kHz
0.14%
THD+N
Total harmonic distortion plus noise
PO = 0.5 W, VDD = 5 V, AV = 6 dB,
f = 1 kHz
0.11%
Channel crosstalk
f = 1 kHz
–85
dB
VDD = 5 V, AV = 6 dB,
f = 217 Hz
–77
kSVR
Supply ripple rejection ratio
dB
VDD = 3.6 V, AV = 6 dB,
f = 217 Hz
–73
CMRR
Common mode rejection ratio
VDD = 3.6 V, VIC = 1 Vpp,
f = 217 Hz
–69
dB
Av = 6 dB
28.1
Av = 12 dB
17.3
Input impedance
k
Av = 18 dB
9.8
Av = 24 dB
5.2
Start-up time from shutdown
VDD = 3.6 V
3.5
ms
No weighting
35
VDD = 3.6 V, f = 20 to 20 kHz,
Vn
Output voltage noise
V
Inputs are ac grounded, AV = 6 dB
A weighting
27
Copyright 2004–2008, Texas Instruments Incorporated
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Product Folder Link(s): TPA2012D2
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TPA2012D2RTJTG4 功能描述:音频放大器 2.1W Stereo Class-D Aud Power Amplifier RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel
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TPA2012D2YZHR 功能描述:音频放大器 2.1W Stereo Class-D Aud Power Amplifier RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel
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