参数资料
型号: TPS65930BZCH
厂商: TEXAS INSTRUMENTS INC
元件分类: 消费家电
英文描述: SPECIALTY CONSUMER CIRCUIT, PBGA139
封装: 10 X 10 MM, 0.65 MM PITCH, GREEN, PLASTIC, NFBGA-139
文件页数: 81/115页
文件大小: 1232K
代理商: TPS65930BZCH
Error
cancellation
A/Doutput
Audio
interface
SINCfilter
differentiator
4thorder
SINCfilter
integrator
4thorder
1storderhigh-
passfilter
Low-pass
filter
037-017
SWCS037G
– MAY 2008 – REVISED APRIL 2011
6.2.6
Digital Audio Filter Module
Figure 6-12 shows the digital audio filter uplink full path characteristics for the audio interface.
Figure 6-12. Digital Audio Filter Uplink Path Characteristics
The high-pass filter (HPF) can be bypassed. It is controlled by the MISC_SET_2 ATX_HPF_BYP bit set to
address 0x49.
Table 6-12 lists the audio filter frequency responses relative to reference gain at 1 kHz.
Table 6-12. Digital Audio Filter TX Electrical Characteristics
Parameter
Test Conditions
Min
Typ
Max
Unit
Passband
0.0005
0.42
FS
Passband gain
In region 0.0005*FS to 0.42*FS
(1)
–0.25
0.25
dB
Stopband
0.6
FS
Stopband attenuation
In region 0.6*FS to 1*FS
(1)
60
dB
Group delay
15.8/FS
μs
(1)
FS is the sampling frequency (8, 11.025, 12, 16, 22.05, 24, 32, 44.1, or 48 kHz).
68
Audio/Voice Module (TPS65930 Device Only)
Copyright
2008–2011, Texas Instruments Incorporated
focus.ti.com: TPS65930/TPS65920
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