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參數資料
| 型號： | TLV320DAC3120IRHBR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | DAC |
| 英文描述： | SERIAL INPUT LOADING, 24-BIT DAC, PQCC32 |
| 封裝： | 5 X 5 MM, PLASTIC, QFN-32 |
| 文件頁數： | 49/110頁 |
| 文件大小： | 1230K |
| 代理商： | TLV320DAC3120IRHBR |
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PLL _ CLKIN
512 kHz
20 MHz
P
PLL _ CLKIN
10 MHz
20 MHz
P
www.ti.com
SLAS659 – NOVEMBER 2009
The PLL can be turned on via page 0 / register 5, bit D7. The variable P can be programmed via page 0 /
register 5, bits D6–D4. The variable R can be programmed via page 0 / register 5, bits D3–D0. The
variable J can be programmed via page 0 / register 6, bits D5–D0. The variable D is 14 bits and is
programmed into two registers. The MSB portion can be programmed via page 0 / register 7, bits D5–D0,
and the LSB portion is programmed via page 0 / register 8, bits D7–D0. For proper update of the D-divider
value, page 0 / register 7 must be programmed first, followed immediately by page 0 / register 8. Unless
the write to page 0 / register 8 is completed, the new value of D does not take effect.
When the PLL is enabled, the following conditions must be satisfied.
When the PLL is enabled and D = 0, the following conditions must be satisfied for PLL_CLKIN:
(7)
80 MHz
≤ (PLL_CLKIN × J.D × R/P) ≤ 110 MHz
4
≤ R × J ≤ 259
When the PLL is enabled and D
≠ 0, the following conditions must be satisfied for PLL_CLKIN:
(10)
80 MHz
≤ (PLL_CLKIN × J.D × R/P) ≤ 110 MHz
R = 1
The PLL can be powered up independently from the 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 codec and various signal processing blocks, CODEC_CLKIN can be generated from MCLK
input, BCLK input, GPIO input or PLL_CLK (page 0 / register 4, bit D1-D0).
If the CODEC_CLKIN is derived from the PLL, then the PLL must be powered up first and powered down
last.
Table 5-22 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.
Copyright 2009, Texas Instruments Incorporated
APPLICATION INFORMATION
43
Product Folder Link(s): TLV320DAC3120
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| TLV320DAC3120IRHBT | 功能描述:音頻數/模轉換器 IC Lo-Pwr Audio DAC w/ Audio Proc RoHS:否 制造商:Texas Instruments 轉換器數量: 分辨率:16 bit 接口類型:I2S, UBS 轉換速率: 信噪比:98 dB 工作電源電壓:5 V DAC 輸出端數量:2 工作溫度范圍:- 25 C to + 85 C 電源電流:23 mA 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-32 封裝:Reel |
| TLV320DAC3120IRHBT | 制造商:Texas Instruments 功能描述:D/A Converter (D-A) IC 制造商:Texas Instruments 功能描述:IC, DAC, 32BIT, 192KSPS, QFN-32 |
| TLV320DAC32 | 制造商:BB 制造商全稱:BB 功能描述:LOW POWER STEREO AUDIO DAC FOR PORTABLE AUDIO/TELEPHONY |
| TLV320DAC3202 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:LOW POWER HIGH FIDELITY I2S INPUT HEADSET IC |
| TLV320DAC3202BYZJR | 功能描述:音頻數/模轉換器 IC Lo Pwr Hi Fidelity I2S Input Headset IC RoHS:否 制造商:Texas Instruments 轉換器數量: 分辨率:16 bit 接口類型:I2S, UBS 轉換速率: 信噪比:98 dB 工作電源電壓:5 V DAC 輸出端數量:2 工作溫度范圍:- 25 C to + 85 C 電源電流:23 mA 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-32 封裝:Reel |
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