参数资料
型号: PCM3052ARTFG4
厂商: TEXAS INSTRUMENTS INC
元件分类: 编解码器
英文描述: PCM CODEC, PQCC32
封装: GREEN, PLASTIC, VQFN-32
文件页数: 46/47页
文件大小: 776K
代理商: PCM3052ARTFG4
www.ti.com
TYPICAL PERFORMANCE CURVES OF INTERNAL FILTER (ADC SECTION)
DIGITAL FILTER
Normalized Frequency [
×fS]
200
150
100
50
0
8
16
24
32
Amplitude
dB
G001
Normalized Frequency [
×fS]
100
80
60
40
20
0
0.0
0.2
0.4
0.6
0.8
1.0
Amplitude
dB
G002
PCM3052A
SLES160 – NOVEMBER 2005
DEVICE INFORMATION (continued)
TERMINAL FUNCTIONS (continued)
TERMINAL
I/O
DESCRIPTION
NAME
NO.
SCKI
17
I
System clock input, 256 fS(3)
SCL
19
I
Mode control clock input (3)
SDA
18
I/O
Mode control data input/output (4)
VCC1
7
ADC analog power supply, 5 V
VCC2
23
DAC analog power supply, 5 V
VCC3
31
Microphone amplifier and bias analog power supply, 5 V
VCOM
26
DAC common voltage decoupling, 0.5 VCC2
VDD
16
Digital power supply, 3.3 V
VINL
2
I
Line input to ADC, L-channel
VINR
6
I
Line input to ADC, R-channel
VOUTL
25
O
Analog output from DAC, L-channel
VOUTR
24
O
Analog output from DAC, R-channel
VREF1
4
ADC reference 1 voltage output, 0.5 VCC1
VREF2
5
ADC reference 2 voltage decoupling, VCC1
(4)
Schimtt-trigger input/open-drain LOW output, 5-V tolerant
All specifications at T
A = 25°C, VCC1 = VCC2 = VCC3 = 5 V, VDD = 3.3 V, fS = 48 kHz, SCKI = 256fS, 24-bit data, unless
otherwise noted.
OVERALL CHARACTERISTICS
STOP-BAND ATTENUATION CHARACTERISTICS
Figure 1.
Figure 2.
8
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