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参数资料
| 型号： | CS42L55-CNZR |
| 厂商： | Cirrus Logic Inc |
| 文件页数： | 12/68页 |
| 文件大小： | 0K |
| 描述： | IC CODEC STER H-HDPN AMP 36-QFN |
| 标准包装： | 6,000 |
| 类型： | 立体声音频 |
| 数据接口： | 串行 |
| 分辨率（位）： | 24 b |
| ADC / DAC 数量： | 1 / 1 |
| 三角积分调变： | 是 |
| 动态范围，标准 ADC / DAC (db)： | 95 / 99 |
| 电压 - 电源，模拟： | 1.65 V ~ 2.71 V |
| 电压 - 电源，数字： | 1.65 V ~ 2.71 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 36-QFN |
| 供应商设备封装： | 36-QFN-EP（5x5） |
| 包装： | 带卷 (TR) |
| 配用： | 598-1506-ND - BOARD EVAL FOR CS42L55 CODEC |
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2
DS773F1
CS42L55
SYSTEM FEATURES
High Performance 24-bit Converters
–
Multi-bit Delta Sigma Architecture
Integrated High Efficient Power Management
Reduces Power Consumption
–
Step-Down Charge Pump Improves
Efficiency
–
Inverting Charge Pump Accommodates
Low System Voltage by Providing Negative
Rail for HP/Line Amp
–
LDO Reg. Provides Low Digital Supply
Voltage
Digital Power Reduction
–
Very Low Oversampling Rate for
Converters
–
Bursted Serial Clock Providing 24 Bits per
Sample
Power Down Management
–
ADC, DAC, CODEC, PGA, DSP
Analog & Digital Routing/Mixes
–
Line/Headphone Out = Analog In (ADC
Bypassed)
–
Line/Headphone Out = ADC Out
–
Internal Digital Loopback
–
Mono Mixes
IC Control Port
IS Digital Interface Format
Flexible Clocking Options
–
Master or Slave Operation
–
High-Impedance Digital Output Select
(used for easy MUXing between CODEC
and other data sources)
–
8.000, 11.029, 12.000, 16.000, 22.059,
24.000, 32.000, 44.118 and 48.000 kHz
Sample Rates
APPLICATIONS
HDD & Flash-Based Portable Audio Players
MD Players/Recorders
PDAs
Personal Media Players
Portable Game Consoles
Digital Voice Recorders
Digital Camcorders
Digital Cameras
Smart Phones
GENERAL DESCRIPTION
The CS42L55 is a highly integrated, 24-bit, ultra-low
power stereo CODEC based on multi-bit delta-sigma
modulation. Both the ADC and DAC offer many features
suitable for low power portable system applications.
The analog input path allows independent channel
control of a variety of features. The Programmable Gain
Amplifier (PGA) provides analog gain with zero cross
transitions. The ADC path includes a digital volume at-
tenuator with soft ramp transitions and a programmable
ALC and noise gate monitor the input signals and adjust
the volume appropriately. An analog passthrough also
exists, accommodating a lower noise, lower power ana-
log in to analog out path to the headphone and line
amplifiers, bypassing the ADC and DAC.
The DAC output path includes a fixed-function digital
signal processing engine. Tone control provides bass
and treble adjustment at four selectable corner frequen-
cies. The digital mixer provides independent volume
control for both the ADC output and PCM input signal
paths, as well as a master volume control. Digital vol-
ume controls may be configured to change on soft ramp
transitions while the analog controls can be configured
to occur on every zero crossing. The DAC path also in-
cludes de-emphasis, limiting functions and a beep
generator delivering tones selectable across a range of
two full octaves.
The Class H stereo headphone amplifier combines the
efficiency of an integrated step-down and inverting
charge pump with the linearity and low EMI of a Class
AB amplifier. A step-down/inverting charge pump oper-
ates in two modes: +/-VCP mode or +/-(VCP/2) mode.
Based on the amplifier’s output signal, internal logic au-
tomatically adjusts the output of the charge pump,
+VHPFILT and –VHPFILT, to optimize efficiency. With
these features, the amplifier delivers a ground-centered
output with a large signal swing even at low voltages
and eliminates the need for external DC-blocking
capacitors.
These features make the CS42L55 the ideal solution for
portable applications that require extremely low power
consumption in a minimal amount of space.
The CS42L55 is available in a 36-pin QFN package for
the
Commercial
(-40°C
to
+85°C)
grade.
The
CDB42L55 Customer Demonstration board is also
available for device evaluation and implementation sug-
gestions. Please see “Ordering Information” on page 73
for complete details.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| CS42L55-DNZ | 功能描述:接口—CODEC Portble Stereo CODEC Class H HP Amp 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 |
| CS42L55DNZR | 制造商:Cirrus Logic 功能描述:PORTABLE STEREO CODEC AND UNIQUE CLASS H HP AMP AUTO GRADE & - Tape and Reel |
| CS42L55-DNZR | 功能描述:接口—CODEC Portable Ster CODEC w/Class H HP Amp 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 |
| CS42L56-CNZ | 功能描述:接口—CODEC IC 24Bit UltraLowPwr Ster Codec w/clH HP 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 |
| CS42L56-CNZR | 功能描述:接口—CODEC IC 24Bit UltraLowPwr Ster CD w/clH HP 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 |
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