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參數(shù)資料
| 型號： | TLV320AIC27CPFB |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 消費(fèi)家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP48 |
| 封裝： | PLASTIC, TQFP-48 |
| 文件頁數(shù)： | 24/54頁 |
| 文件大?。?/td> | 732K |
| 代理商： | TLV320AIC27CPFB |
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TLV320AIC27
STEREO AUDIO CODEC
SLAS253A – MARCH 2000 – REVISED SEPTEMBER 2000
30
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
3D control register (index 22h)
This register is used to control the center and/or depth of the 3D stereo-enhancement function built into the
AC’97 component. Only the depth bits, DP0–3 have effect in the TLV320AIC27.
DP3...DP0
DEPTH
0
0%
1
–
8
Typical value
–
15
100%
reserved register (index 24h)
Not supported by the TLV320AIC27.
power-down control/status register (index 26h)
This read/write register is used to program the power-down states and to monitor subsystem readiness. The
lower half of this register is read-only status, a 1 indicating that the subsection is
ready. Ready is defined as the
subsection being able to perform in its nominal state. When this register is written, the bit values that come in
on the ac link have no effect on read only bits 0 to 7.
An ac-link codec-ready indicator bit (SDATA_IN slot 0, bit 15) equal to 1 it indicates that the ac link and the
TLV320AIC27 control and status registers are in a fully operational state. The AC’97 controller must further
probe this power-down control/status register to determine exactly which subsections, if any, are ready.
Table 15. Power-Down Status Register Function
READ BIT
FUNCTION
REF
VREFs up to nominal level
ANL
Analog mixers, etc., ready
DAC
DAC section ready to accept data
ADC
ADC section ready to transmit data
The power-down modes are as follows. The first three bits are to be used individually rather than in combination
with each other. The last bit PR3 can be used in combination with PR2 or by itself. PR0 and PR1 control the
PCM ADCs and DACs only. PR6 is not supported by the TLV320AIC27.
Table 16. Power-Down Control Register Function
WRITE BIT
FUNCTION
PR0
PCM in ADCs and input Mux power down
PR1
PCM out DACs power down
PR2
Analog mixer power down (VREF still on)
PR3
Analog mixer power down (VREF off)
PR4
Digital interface (ac link) power down (external clock off)
PR5
Internal clock disable
PR6
HP amp power down – not supported
EAPD
External amplifier power down
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| TLV320AIC27IPFB | 制造商:TI 制造商全稱:Texas Instruments 功能描述:STEREO AUDIO CODEC |
| TLV320AIC27PFB | 制造商:TI 制造商全稱:Texas Instruments 功能描述:STEREO AUDIO CODEC |
| TLV320AIC27TPFB | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Texas Instruments 功能描述: |
| TLV320AIC28 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:STEREO AUDIO CODEC WITH INTERGRATED HEADPHONE AND SPEAKER AMPLIFIERS |
| TLV320AIC28_08 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:STEREO AUDIO CODEC WITH INTEGRATED HEADPHONE AND SPEAKER AMPLIFIERS |
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