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參數(shù)資料
型號: TLV320AIC3111IRHBT
廠商: TEXAS INSTRUMENTS INC
元件分類: 音頻/視頻放大
英文描述: AUDIO AMPLIFIER, PQCC32
封裝: 5 X 5 MM, GREEN, PLASTIC, QFN-32
文件頁數(shù): 125/156頁
文件大小: 1701K
代理商: TLV320AIC3111IRHBT
PLL _ CLKIN
10 MHz
20 MHz
P
SLAS644B – JULY 2009 – REVISED OCTOBER 2009
www.ti.com
(11)
The PLL can be powered up independently from the ADC and DAC blocks, and can also be used as a
general-purpose PLL by routing its output to the GPIO output. After powering up the PLL, PLL_CLK is
available typically after 10 ms.
The clocks for the codec and various signal processing blocks, CODEC_CLKIN, can be generated from
the MCLK input, BCLK input, GPIO input, or PLL_CLK (page 0 / register 4, bits D1–D0).
If CODEC_CLKIN is derived from the PLL, then the PLL must be powered up first and powered down last.
Table 5-42 lists several example cases of typical PLL_CLKIN rates and how to program the PLL to
achieve a sample rate fS of either 44.1 kHz or 48 kHz.
Table 5-42. PLL Example Configurations
PLL_CLKIN
PLLP
PLLR
PLLJ
PLLD
MADC
NADC
AOSR
MDAC
NDAC
DOSR
(MHz)
fS = 44.1 kHz
2.8224
1
3
10
0
3
5
128
3
5
128
5.6448
1
3
5
0
3
5
128
3
5
128
12
1
7
560
3
5
128
3
5
128
13
1
6
3504
2
9
104
6
3
104
16
1
5
2920
3
5
128
3
5
128
19.2
1
4
4100
3
5
128
3
5
128
48
4
1
7
560
3
5
128
3
5
128
fS = 48 kHz
2.048
1
3
14
0
2
7
128
7
2
128
3.072
1
4
7
0
2
7
128
7
2
128
4.096
1
3
7
0
2
7
128
7
2
128
6.144
1
2
7
0
2
7
128
7
2
128
8.192
1
4
3
0
2
8
128
4
128
12
1
7
1680
2
7
128
7
2
128
16
1
5
3760
2
7
128
7
2
128
19.2
1
4
4800
2
7
128
7
2
128
48
4
1
7
1680
2
7
128
7
2
128
5.8
Digital Audio and Control Interface
5.8.1
Digital Audio Interface
Audio data is transferred between the host processor and the TLV320AIC3111 via the digital audio data
serial interface, or audio bus. The audio bus on this device is very flexible, including left- or right-justified
data options, support for I2S or PCM protocols, programmable data length options, a TDM mode for
multichannel operation, very flexible master/slave configurability for each bus-clock line, and the ability to
communicate with multiple devices within a system directly.
The audio bus of the TLV320AIC3111 can be configured for left- or right-justified, I2S, DSP, or TDM
modes of operation, where communication with standard telephony PCM interfaces is supported within the
TDM mode. These modes are all MSB-first, with data width programmable as 16, 20, 24, or 32 bits by
configuring page 0 / register 27, bits D5–D4. In addition, the word clock and bit clock can be
independently configured in either master or slave mode, for flexible connectivity to a wide variety of
processors. The word clock is used to define the beginning of a frame, and may be programmed as either
a pulse or a square-wave signal. The frequency of this clock corresponds to the maximum of the selected
ADC and DAC sampling frequencies.
70
APPLICATION INFORMATION
Copyright 2009, Texas Instruments Incorporated
Product Folder Link(s): TLV320AIC3111
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