參數(shù)資料
型號： PCM9211PTR
廠商： TEXAS INSTRUMENTS INC
元件分類： 網(wǎng)絡接口
英文描述： DATACOM, TOKEN RING TRANSCEIVER, PQFP48
封裝： GREEN, PLASTIC, LQFP-48
文件頁數(shù)： 67/121頁
文件大?。?/td> 1219K
代理商： PCM9211PTR
www.ti.com
SBAS495 – JUNE 2010
ELECTRICAL CHARACTERISTICS: Analog-to-Digital Converter (ADC)
All specifications at TA = +25°C, VCC = VDD = VDDRX = 3.3 V, and VCCAD = 5 V, unless otherwise noted.
PCM9211
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
ADC, CHARACTERISTICS
Resolution
16
24
Bits
fS
Sampling frequency
16
96
kHz
Bit clock frequency
64fS
1.024
6.144
MHz
256fS
4.096
24.576
MHz
System clock frequency
512fS
8.192
24.576
MHz
ADC, ANALOG INPUT
Full-scale input voltage
VINL, VINR = 0 dB
0.6 VCCAD
VPP
Center voltage
0.5 VCCAD
V
Input Impedance
10
k
Ω
Antialiasing filter response
–3 dB
300
kHz
ADC, DC ACCURACY
Gain mismatch, channel to
Full-scale input, VINL, VINR
2.0
±8.0
% of FSR
channel
Gain error
Full-scale input, VINL, VINR
±2.0
±8.0
% of FSR
Bipolar zero error
HPF bypass, VINL, VINR
±0.5
±2.0
% of FSR
ADC, DYNAMIC PERFORMANCE
fS = 48 kHz
–93
–85
dB
THD+N VIN = –1 dB
fS = 96 kHz
–93
dB
fS = 48 kHz, A-weighted
95
99
dB
Dynamic range
fS = 96 kHz, A-weighted
101
dB
fS = 48 kHz, A-weighted
95
99
dB
S/N ratio
fS = 96 kHz, A-weighted
101
dB
fS = 48 kHz
92
96
dB
Channel separation (between
L-ch and R-ch)
fS = 96 kHz
98
dB
ADC, DIGITAL FILTER PERFORMANCE
Passband
0.454 fS
Hz
Stop band
0.583 fS
Hz
Passband ripple
< 0.454 fS
±0.05
dB
Stop band attenuation
> 0.583 fS
–65
dB
Group delay time
17.4 / fS
sec
0.019 fS/
HPF frequency response
–3 dB
Hz
1000
ADC, COMMON VOLTAGE OUTPUT
VCOM output voltage
0.5 VCCAD
V
VCOM output impedance
7
12.5
18
k
Ω
Allowable VCOM output
±1
mA
source/sink current
Copyright 2010, Texas Instruments Incorporated
5
Product Folder Link(s): PCM9211
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