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參數資料
型號: TPS65920A2ZCH
廠商: TEXAS INSTRUMENTS INC
元件分類: 消費家電
英文描述: SPECIALTY CONSUMER CIRCUIT, PBGA139
封裝: 10 X 10 MM, 0.65 MM PITCH, GREEN, PLASTIC, NFBGA-139
文件頁數: 71/115頁
文件大小: 1232K
代理商: TPS65920A2ZCH
Low-pass
Filter
Digital
modulator
Randomizer
High-pass
filter
Audiointerface
DAC
037-051
SWCS037G
– MAY 2008 – REVISED APRIL 2011
6.1.4
Digital Audio Filter Module
Figure 6-5 shows the digital audio filter downlink full path characteristics for the audio interface.
Figure 6-5. Digital Audio Filter Downlink Path Characteristics
The HPF can be bypassed. It is controlled by the MISC_SET_2 ARX_HPF_BYP bit set to address 0x49.
Table 6-4 lists the audio filter frequency responses relative to reference gain at 1 kHz.
Table 6-4. Digital Audio Filter RX Electrical Characteristics
Parameter
Conditions
Min
Typ
Max
Unit
Passband
0.42
FS
Passband ripple
0 to 0.42FS
(1)
–0.25
0.1
0.25
dB
Stopband
0.6
FS
Stopband attenuation
F = 0.6FS
(1) to 0.8F
S
(1)
60
75
dB
Group delay
15.8/FS
(1)
μs
Linear phase
–1.4
1.4
°
(1)
FS is the sampling frequency (8, 11.025, 12, 16, 22.05, 24, 32, 44.1, or 48 kHz).
6.1.5
Boost Stage
The boost effect adds emphasis to low frequencies. It compensates for a HPF created by the capacitor
resistor (CR) filter of the headset (in ac-coupling configuration).
There are four modes. Three effects are available, with slightly different frequency responses, and the
fourth setting disables the boost effect:
Boost effect 1
Boost effect 2
Boost effect 3
Flat equalization: The boost effect is in bypass mode.
NOTE
Boost effect modes are defined in Table 6-5.
Table 6-5 and Table 6-6 include the typical values according to the frequency response versus input
frequency and FS frequency.
Copyright
2008–2011, Texas Instruments Incorporated
Audio/Voice Module (TPS65930 Device Only)
59
focus.ti.com: TPS65930/TPS65920
相關PDF資料
PDF描述
TPS65920BZCHR SPECIALTY CONSUMER CIRCUIT, PBGA139
TPS65920BZCH SPECIALTY CONSUMER CIRCUIT, PBGA139
TPS65930A2ZCHR SPECIALTY CONSUMER CIRCUIT, PBGA139
TPS65930A2ZCH SPECIALTY CONSUMER CIRCUIT, PBGA139
TPS65930BZCHR SPECIALTY CONSUMER CIRCUIT, PBGA139
相關代理商/技術參數
參數描述
TPS65920A2ZCHR 功能描述:PMIC 解決方案 Int Pwr Mgmt IC RoHS:否 制造商:Texas Instruments 安裝風格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel
TPS65920BZCH 功能描述:開關變換器、穩壓器與控制器 Int Pwr Mgmt IC RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel
TPS65920BZCH 制造商:Texas Instruments 功能描述:Power Supply IC
TPS65920BZCHR 功能描述:開關變換器、穩壓器與控制器 Int Pwr Mgmt IC RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel
TPS65921B1ZQZ 功能描述:PMIC 解決方案 Integrated Power Mgmt IC RoHS:否 制造商:Texas Instruments 安裝風格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel
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