- 您现在的位置：买卖IC网 > PDF目录380066 > CS4218-KL (CRYSTAL SEMICONDUCTOR CORP) 16-Bit Stereo Audio Codec PDF资料下载
参数资料
| 型号： | CS4218-KL |
| 厂商： | CRYSTAL SEMICONDUCTOR CORP |
| 元件分类： | 消费家电 |
| 英文描述： | 16-Bit Stereo Audio Codec |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PQCC44 |
| 封装： | PLASTIC, LCC-44 |
| 文件页数： | 14/44页 |
| 文件大小： | 586K |
| 代理商： | CS4218-KL |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页当前第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页
master and slave modes automatically initiates a
calibration.
An RC filter with a time constant greater than
50 ms may be used on the RESET pin. The
CS4218 RESET pin has hysterisis to ensure
proper resets when using an RC filter.
Hard power down mode may be initiated by
bringing the PDN pin low. All analog outputs
will be driven to the REFBUF voltage which
will then decay to zero. All digital outputs will
be driven low and then will go to a high imped-
ance state. Minimum power consumption will
occur if CLKIN is held low. After leaving the
power down state, RESET should be held low
for 50 ms to allow the analog voltage reference
to settle before calibration is started.
Alternatively, soft power down may be initiated
in slave modes by reducing the SCLK frequency
below the minimum values shown in Table 1. In
soft power down the analog outputs are muted
and the serial data from the codec will indicate
invalid data and the appropriate error code. The
parallel bit I/O is still functional in soft power
down mode. This is, in effect, a low power mode
with only the parallel bit I/O unit functioning.
Audio Serial Interface
In Serial Mode 3 (SM3), the audio serial port
uses 4 pins: SDOUT, SDIN, SCLK and SSYNC.
SDIN carries the D/A converters’ input data and
control bits. Input data is ignored for frames not
allocated to the selected CS4218. SDOUT car-
ries the A/D converters’ output data and status
bits. SDOUT goes to a high-impedance state
during frames not allocated to the selected
CS4218. SCLK clocks data in to and out of the
CS4218. SSYNC indicates the start of a frame
and/or sub-frame. SCLK and SSYNC must be
synchronous to the master clock.
Serial Mode 4 (SM4) is similar to SM3 with the
exception of the control information. In Serial
Mode 4, the control information is entered
through a separate asynchronous control port.
Therefore, the audio serial port only contains
audio data, which reduces the number of bits on
the audio port from 64 to 32 per codec. This is
useful for lower bit rate serial hosts.
Serial Mode 5 (SM5) is compatible with the
I
2
S
TM
serial data protocol. SM5 is a Master
mode only. As in SM3, 4 pins are used:
SDOUT, SDIN, SCLK, and SSYNC.
The serial port protocol is based on frames con-
sisting of 1, 2, or 4 sub-frames. The frame rate is
the system sample rate. Each sub-frame is used
by one CS4218 device. Up to 4 CS4218s may be
attached to the same serial control lines. SFS1
and SFS2 are tied low or high to indicate to each
CS4218 which sub-frame is allocated for it to
use.
Serial Data Format
In SM3 and SM5, a sub-frame is 64 bits in
length and consists of two 16-bit audio values
and two 16-bit control fields. In SM4 a sub-
frame is 32 bits in length and only contains the
two 16-bit audio fields; the control data is loaded
through a separate port. The audio data is MSB
Bits Per Frame
Minimum SCLK
Frequency
For All Modes Except SM3 Multiplier Sub Mode
32
64
128
256
SM3 Multiplier Sub Mode
64
128
256
CLKIN / 96
CLKIN / 48
CLKIN / 24
CLKIN / 12
(16 * CLKIN) / 48
(16 * CLKIN) / 24
(16 * CLKIN) / 12
Table 1. Soft Power Down Conditions
(Slave Modes only)
CS4218
14
DS135F1
相关PDF资料 |
PDF描述 |
|---|---|
| CS4218-KQ | 16-Bit Stereo Audio Codec |
| CS4218 | 16-Bit Stereo Audio Codec |
| CS4220 | 24-Bit Stereo Audio Codec with 3V Interface |
| CS4220-KS | IC EEPROM SRL 512X8BIT 8DIP |
| CS4221 | 24-Bit Stereo Audio Codec with 3V Interface |
相关代理商/技术参数 |
参数描述 |
|---|---|
| CS4218-KQ | 制造商:CIRRUS 制造商全称:Cirrus Logic 功能描述:16-Bit Stereo Audio Codec |
| CS4220 | 制造商:CIRRUS 制造商全称:Cirrus Logic 功能描述:24-Bit Stereo Audio Codec with 3V Interface |
| CS4220-KS | 制造商:CIRRUS 制造商全称:Cirrus Logic 功能描述:24-Bit Stereo Audio Codec with 3V Interface |
| CS4220-KSR | 制造商:Rochester Electronics LLC 功能描述: 制造商:Cirrus Logic 功能描述: |
| CS4220-KSZ | 功能描述:接口—CODEC IC 24Bit Str Audio CODEC 3V Intrfc RoHS:否 制造商:Texas Instruments 类型: 分辨率: 转换速率:48 kSPs 接口类型:I2C ADC 数量:2 DAC 数量:4 工作电源电压:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-81 封装:Reel |
发布紧急采购，3分钟左右您将得到回复。