参数资料
| 型号： | CS5346-CQZR |
| 厂商： | Cirrus Logic Inc |
| 文件页数： | 16/38页 |
| 文件大小： | 0K |
| 描述： | IC ADC AUD 103DB 200KHZ 48-LQFP |
| 标准包装： | 2,000 |
| 位数： | 24 |
| 采样率（每秒）： | 200k |
| 数据接口： | 串行 |
| 转换器数目： | 2 |
| 功率耗散（最大）： | 250mW |
| 电压电源： | 模拟和数字 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 48-LQFP |
| 供应商设备封装： | 48-LQFP（7x7） |
| 包装： | 带卷 (TR) |
| 输入数目和类型： | 6 个单端，单极 |
| 配用： | 598-1790-ND - BOARD EVAL FOR CS5346 |
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DS861PP3
23
CS5346
5.6
PGA Auxiliary Analog Output
The CS5346 includes an auxiliary analog output through the PGAOUT pins. These pins can be configured
to output the analog input to the ADC as selected by the input MUX and gained or attenuated with the PGA,
or alternatively, they may be set to high impedance. See the “PGAOut Source Select (Bit 6)” on page 30 for
information on configuring the PGA auxiliary analog output.
The PGA auxiliary analog output can source very little current. Ascurrent from the PGAOUT pins increases,
distortion will increase. For this reason, a high-input impedance buffer must be used on the PGAOUT pins
to achieve full performance. An example buffer for PGAOUT is provided on the CDB5346 for reference. Re-
fer to the table in “DC Electrical Characteristics” on page 12 for acceptable loading conditions.
5.7
Control Port Description and Timing
The control port is used to access the registers, allowing the CS5346 to be configured for the desired oper-
ational modes and formats. The operation of the control port may be completely asynchronous with respect
to the audio sample rates. However, to avoid potential interference problems, the control port pins should
remain static if no operation is required.
The control port has two modes: SPI and IC, with the CS5346 acting as a slave device. SPI Mode is se-
lected if there is a high-to-low transition on the AD0/CS pin, after the RST pin has been brought high. IC
Mode is selected by connecting the AD0/CS pin through a resistor to VLC or DGND, thereby permanently
selecting the desired AD0 bit address state.
5.7.1
SPI Mode
In SPI Mode, CS is the chip-select signal; CCLK is the control port bit clock (input into the CS5346 from
the microcontroller); CDIN is the input data line from the microcontroller; CDOUT is the output data line
to the microcontroller. Data is clocked in on the rising edge of CCLK and out on the falling edge.
Figure 14 shows the operation of the control port in SPI Mode. To write to a register, bring CS low. The
first seven bits on CDIN form the chip address and must be 1001111. The eighth bit is a read/write indi-
cator (R/W), which should be low to write. The next eight bits form the Memory Address Pointer (MAP),
which is set to the address of the register that is to be updated. The next eight bits are the data that will
be placed into the register designated by the MAP. During writes, the CDOUT output stays in the Hi-Z
state. It may be externally pulled high or low with a 47 k resistor, if desired.
To read a register, the MAP has to be set to the correct address by executing a partial write cycle which
finishes (CS high) immediately after the MAP byte. To begin a read, bring CS low, send out the chip ad-
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相关代理商/技术参数 |
参数描述 |
|---|---|
| CS5346-DQZ | 功能描述:模数转换器 - ADC 103dB 24Bit 192kHz Stereo Audio ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| CS5346-DQZR | 功能描述:音频数/模转换器 IC 103dB 24Bit 192kHz Stereo Audio ADC RoHS:否 制造商:Texas Instruments 转换器数量: 分辨率:16 bit 接口类型:I2S, UBS 转换速率: 信噪比:98 dB 工作电源电压:5 V DAC 输出端数量:2 工作温度范围:- 25 C to + 85 C 电源电流:23 mA 安装风格:SMD/SMT 封装 / 箱体:TQFP-32 封装:Reel |
| CS5349-000 | 制造商:TE Connectivity 功能描述:4110-10-340812 |
| CS5349-BP | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog-to-Digital Converter， 16-Bit |
| CS5349-BS | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog-to-Digital Converter， 16-Bit |
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