参数资料
型号: TLV320ADC3101IRGET320
厂商: TEXAS INSTRUMENTS INC
元件分类: 消费家电
英文描述: SPECIALTY CONSUMER CIRCUIT, PQCC24
封装: 4 X 4 MM, GREEN, PLASTIC, VQFN-24
文件页数: 35/83页
文件大小: 1338K
代理商: TLV320ADC3101IRGET320
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6 1.8
2
Frequency Normalized With Respect to fS
Magnitude
dB
ADC Channel Response for Decimation Filter A
(Red line corresponds to –73 dB)
SLAS553A – NOVEMBER 2008 – REVISED SEPTEMBER 2009...................................................................................................................................... www.ti.com
Decimation Filter A
This filter is intended for use at sampling rates up to 48 kHz. When configuring this filter, the oversampling ratio
of the ADC can either be 128 or 64. For highest performance, the oversampling ratio must be set to 128. Filter A
can also be used for 96 kHz at an AOSR of 64.
Table 10. Specification for ADC Decimation Filter A
Parameter
Condition
Value (Typical)
Unit
AOSR = 128
Filter gain pass band
0–0.39 fS
0.062
dB
Filter gain stop band
0.55–64 fS
–73
dB
Filter group delay
17/fS
s
Pass-band ripple, 8 ksps
0–0.39 fS
0.062
dB
Pass-band ripple, 44.18 ksps
0–0.39 fS
0.05
dB
Pass-band ripple, 48 ksps
0–0.39 fS
0.05
dB
AOSR = 64
Filter gain pass band
0–0.39 fS
0.062
dB
Filter gain stop band
0.55–32 fS
–73
dB
Filter group delay
17/fS
s
Pass-band ripple, 8 ksps
0–0.39 fS
0.062
dB
Pass-band ripple, 44.18 ksps
0–0.39 fS
0.05
dB
Pass-band ripple, 48 ksps
0–0.39 fS
0.05
dB
Pass-band ripple, 96 ksps
0–20 kHz
0.1
dB
Figure 44. ADC Decimation Filter A, Frequency Response
40
Copyright 2008–2009, Texas Instruments Incorporated
Product Folder Link(s) :TLV320ADC3101
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