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参数资料
| 型号： | PCM3168ATPAPRQ1G4 |
| 厂商： | Texas Instruments |
| 文件页数： | 11/68页 |
| 文件大小： | 0K |
| 描述： | IC 24-BIT AUDIO CODEC 64-HTQFP |
| 标准包装： | 1,000 |
| 类型： | 音频编解码器 |
| 数据接口： | 串行 |
| 分辨率（位）： | 24 b |
| ADC / DAC 数量： | 6 / 8 |
| 三角积分调变： | 是 |
| S/N 比，标准 ADC / DAC (db)： | 107 / 112（差分），104 / 112（单端） |
| 动态范围，标准 ADC / DAC (db)： | 107 / 112（差分），104 / 112（单端） |
| 电压 - 电源，模拟： | 4.5 V ~ 5.5 V |
| 电压 - 电源，数字： | 3 V ~ 3.6 V |
| 工作温度： | -40°C ~ 105°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 64-TQFP 裸露焊盘 |
| 供应商设备封装： | 64-HTQFP（10x10） |
| 包装： | 带卷 (TR) |
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PRODUCT OVERVIEW
ANALOG INPUTS
ANALOG OUTPUTS
www.ti.com ......................................................................................................................................................................................... SBAS452 – SEPTEMBER 2008
The PCM3168A and PCM3168A-Q1 are high-performance, multi-channel codecs targeted for automotive audio
applications such as external amplifiers, as well as home multi-channel audio applications (for example, home
theaters and A/V receivers). The PCM3168A and PCM3168A-Q1 consist of six-channel analog-to-digital
converters (ADCs) and eight-channel digital-to-analog converters (DACs). The ADC input is selectable between
single-ended and differential inputs. The DAC output type is fixed with a differential configuration. The
PCM3168A and PCM3168A-Q1 support 24-bit linear PCM input and output data in standard audio formats
(left-justified, right-justified, and I2S), DSP and TDM formats, and various sample frequencies from 8 kHz to 192
kHz (the ADC configuration supports only up to 96 kHz). The TDM format is useful to save interface bus line
numbers for multi-channel audio data communication between the codec and digital audio processor. The
PCM3168A and PCM3168A-Q1 offer three modes for device control: two-wire I2C software, four-wire SPI
software, and hardware modes.
The PCM3168A and PCM3168A-Q1 include six ADCs, each with individual pairs of differential voltage input pins,
as shown in Table 1. Additionally, the PCM3168A and PCM3168A-Q1 have the capability of single-ended inputs.
The full-scale input voltage is (0.2 × VCCAD1) VRMS at the single-ended input mode and (0.4 × VCCAD1) VRMS
at the differential input mode. The input mode is selected by the MODE pin in hardware control mode or by
register settings in the software control mode. In single-ended mode, VINx+ pins are used and VINx– pins must
be terminated with AGNDAD1/2 via a capacitor or terminated with VCOMAD.
Table 1. Pin Assignments in Differential and Single-Ended Input Modes
CHANNEL
DIFFERENTIAL INPUT MODE
SINGLE-ENDED INPUT MODE
1 (ADC1)
VIN1+, VIN1–
VIN1+
2 (ADC2)
VIN2+, VIN2–
VIN2+
3 (ADC3)
VIN3+, VIN3–
VIN3+
4 (ADC4)
VIN4+, VIN4–
VIN4+
5 (ADC5)
VIN5+, VIN5–
VIN5+
6 (ADC6)
VIN6+, VIN6–
VIN6+
The PCM3168A and PCM3168A-Q1 include eight DACs, each with individual pairs of differential voltage inputs
pins, as shown in Table 2. The full-scale output voltage is (1.6 × VCCDA1) VPP in differential mode. DC-coupled
loads are allowed in addition to ac-coupled loads if the load resistance conforms to the specification.
Table 2. Pin Assignments for Differential Output
CHANNEL
DIFFERENTIAL OUTPUT
1 (DAC1)
VOUT1+, VOUT1–
2 (DAC2)
VOUT2+, VOUT2–
3 (DAC3)
VOUT3+, VOUT3–
4 (DAC4)
VOUT4+, VOUT4–
5 (DAC5)
VOUT5+, VOUT5–
6 (DAC6)
VOUT6+, VOUT6–
7 (DAC7)
VOUT7+, VOUT7–
8 (DAC8)
VOUT8+, VOUT8–
Copyright 2008, Texas Instruments Incorporated
19
Product Folder Link(s): PCM3168A PCM3168A-Q1
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