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參數資料
| 型號： | TLV320AIC33IZQER |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PBGA80 |
| 封裝： | 5 X 5 MM, ROHS COMPLIANT, PLASTIC, VFBGA-80 |
| 文件頁數： | 21/93頁 |
| 文件大小： | 1427K |
| 代理商： | TLV320AIC33IZQER |
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2/Q
GPIO2
PLL_CLKIN
CODEC
CODEC_CLKIN
2/(N*M)
CLKMUX_OUT
GPIO1
PLL_OUT
K = J.D
J = 1,2,3,. . . , 62,63
D= 0000,0001, . . . ,9998,9999
R= 1,2,3,4, . . . ,15,16
P= 1,2, . . . . ,7,8
M =1,2,4,8
N = 2,3, . . . ., 16,17
MCLK
BCLK
CLKDIV_IN
PLL_IN
WCLK= Fsref/ Ndac
GPIO1= Fsref/ Nadc
ADC_FS
DAC_FS
CLKOUT
Ndac=1,1.5,2, . . ., 5.5,6
DAC DRA => Ndac = 0.5
ADC DRA => Nadc = 0.5
CODEC_CLK=256*Fsref
CLKOUT_IN
CLKDIV_OUT
1/8
PLLDIV_OUT
CLKDIV_CLKIN
Q = 3,3, . . . . ,16,17
K*R/P
Ndac=1,1.5,2, . . ., 5.5,6
SLAS480B – JANUARY 2006 – REVISED DECEMBER 2008 ........................................................................................................................................... www.ti.com
Figure 27. Audio Clock Generation Processing
The part can accept an MCLK input from 512 kHz to 50 MHz, which can then be passed through either a
programmable divider or a PLL, to get the proper internal audio master clock needed by the part. The BCLK or
GPIO2 inputs can also be used to generate the internal audio master clock.
This design also allows the PLL to be used for an entirely separate purpose in a system, if the audio codec is not
powered up. The user can supply a separate clock to GPIO2, route this through the PLL, with the resulting output
clock driven out GPIO1, for use by other devices in the system
A primary concern is proper operation of the codec at various sample rates with the limited MCLK frequencies
available in the system. This device includes a highly programmable PLL to accommodate such situations easily.
The integrated PLL can generate audio clocks from a wide variety of possible MCLK inputs, with particular focus
paid to the standard MCLK rates already widely used.
28
Copyright 2006–2008, Texas Instruments Incorporated
Product Folder Link(s): TLV320AIC33
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相關代理商/技術參數 |
參數描述 |
|---|---|
| TLV320AIC33NIZQE | 制造商:Texas Instruments 功能描述: |
| TLV320AIC33NIZQER | 制造商:Texas Instruments 功能描述: |
| TLV320AIC33RHBRG4 | 制造商:Texas Instruments 功能描述:CODEC - Tape and Reel |
| TLV320AIC34 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:FOUR-CHANNEL, LOW-POWER AUDIO CODEC FOR PORTABLE AUDIO/TELEPHONY |
| TLV320AIC34_1 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:FOUR-CHANNEL, LOW-POWER AUDIO CODEC FOR PORTABLE AUDIO/TELEPHONY |
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