- 您现在的位置：买卖IC网 > PDF目录380066 > CS4215-KQ (CIRRUS LOGIC INC) 16-Bit Multimedia Audio Codec PDF资料下载
参数资料
| 型号： | CS4215-KQ |
| 厂商： | CIRRUS LOGIC INC |
| 元件分类： | 消费家电 |
| 英文描述： | 16-Bit Multimedia Audio Codec |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP100 |
| 封装： | TQFP-100 |
| 文件页数： | 40/52页 |
| 文件大小： | 878K |
| 代理商： | CS4215-KQ |
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页当前第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页
GENERAL INFORMATION
The CDB4215 is designed to provide an easy
platform for evaluating the performance of the
CS4215 Multimedia Audio Codec. The board
provides a buffered serial interface for easy con-
nection to the serial port of a DSP or other serial
device. A single +5 V power supply is all that is
required to power the evaluation board.
The line input buffers are designed to accept
standard CD-level inputs of 2 V
RMS
and BNC-
to-phono adapters are included to support
various test setups. The microphone inputs con-
sist of two
1
/
4
" mono jacks that are designed to
accept standard single-ended dynamic or con-
denser microphones.
The line outputs are supplied via BNC jacks
with two more BNC-to-phono adapters. The
headphone output is supplied via a
1
/
4
" stereo
jack and will drive headphones of 48
or
greater. This includes most "walkman" style
headphones. Speaker terminals are provided and
can be connected to speakers with an impedance
of 32
or greater.
The film plots of the board are included to pro-
vide an example of the optimum layout,
grounding, and decoupling arrangement for the
CS4215.
POWER SUPPLY CIRCUITRY
Figure 1 illustrates a portion of the CDB4215
schematic and includes the CS4215 codec along
with power supply circuitry. Power is supplied to
the board via two sets of binding posts, one for
digital and one for analog. The analog supply
must be +5 Volts and supplies power for the en-
tire codec (both digital and analog power supply
pins) along with the analog input buffers for the
line and microphone inputs. The digital supply is
also +5 Volts and supplies power to the digital
header buffer circuitry. Space for a ferrite bead
inductor, L1, has been provided so that the board
may be modified to power the codec from the
digital supply. Selection of L1 will depend on
the characteristics of the noise on the digital sup-
ply used.
ANALOG INPUTS
The analog inputs consist of a pair of
1
/
4
" jacks
for two microphones, and a pair of BNC’s for
line level inputs. BNC-to-phono adapters are in-
cluded to allow testing of the line inputs using
coax or standard audio cables.
The line-level inputs go through a buffer, Fig-
ure 2, with a gain of 0.5 which allows input
signals of up to 2 V
RMS
.
The two microphone inputs are single-ended and
are designed to work with both condenser and
dynamic mics. The microphone input buffer cir-
cuit, shown in Figure 3, has a gain of 23 dB
thereby defining a full-scale input voltage to the
mic jacks of 19.5 mVpp.
ANALOG OUTPUTS
The CDB4215 includes three analog output
paths: a pair of line output BNC’s, a stereo
1
/
4
"
headphone jack, and a pair of mono speaker ter-
minals.
The CS4215 drives the line outputs into an R-C
filter and then to a pair of BNC’s. As with the
line inputs, BNC-to-phono adapters are provided
for flexibility. The line outputs can drive an im-
pedance of 10 k
or more, which is the typical
input impedance of most audio gear.
The stereo headphone output can drive head-
phones with an impedance of 48
or greater.
This includes most "walkman" style headphones.
CDB4215
40
DS76DB3
相关PDF资料 |
PDF描述 |
|---|---|
| CS4215 | 16-Bit Multimedia Audio Codec |
| CS4216 | 16-Bit Stereo Audio Codec |
| CS4216-KL | IC EEPROM SRL 256-8BIT 8DIP |
| CS4216-KQ | 16-Bit Stereo Audio Codec |
| CS4218-KL | 16-Bit Stereo Audio Codec |
相关代理商/技术参数 |
参数描述 |
|---|---|
| CS4216 | 制造商:CIRRUS 制造商全称:Cirrus Logic 功能描述:16-Bit Stereo Audio Codec |
| CS4216-KL | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| CS4216-KQ | 制造商:CIRRUS 制造商全称:Cirrus Logic 功能描述:16-Bit Stereo Audio Codec |
| CS4217-KL | 制造商:CRYSTAL 功能描述: |
| CS4218 | 制造商:CIRRUS 制造商全称:Cirrus Logic 功能描述:16-Bit Stereo Audio Codec |
发布紧急采购，3分钟左右您将得到回复。