Datasheet > CXD2555Q

CXD2555Q

更新时间： 2024-02-28 03:56:30

品牌	Logo	应用领域
英特矽尔 - INTERSIL		转换器
页数	文件大小	规格书
11页	744K
描述
1-Bit, AD/DA Converter For Audio Application

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技术参数
数据手册

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CXD2555Q 技术参数

生命周期：	Obsolete	包装说明：	QFP,
Reach Compliance Code：	unknown	HTS代码：	8542.39.00.01
风险等级：	5.82	模拟集成电路 - 其他类型：	ANALOG CIRCUIT
JESD-30 代码：	S-PQFP-G48	长度：	12.15 mm
功能数量：	1	端子数量：	48
最高工作温度：	75 °C	最低工作温度：	-20 °C
封装主体材料：	PLASTIC/EPOXY	封装代码：	QFP
封装形状：	SQUARE	封装形式：	FLATPACK
认证状态：	Not Qualified	座面最大高度：	2.55 mm
最大供电电压 (Vsup)：	5.25 V	最小供电电压 (Vsup)：	4.75 V
标称供电电压 (Vsup)：	5 V	表面贴装：	YES
温度等级：	COMMERCIAL EXTENDED	端子形式：	GULL WING
端子节距：	0.8 mm	端子位置：	QUAD
宽度：	12.15 mm	Base Number Matches：	1

CXD2555Q 数据手册

HI2555, CXD2555

Master Mode/Slave Mode

Crystal Oscillator Frequency Selection

(f = 32kHz to 48kHz)

(Related Pins) MS, LRCK, BCK

(Related Pins) XTLI, XTLO, XSLO, XSL1, XSL2, UNCLK,

XCLK

When using the XCS2555Q in multiple units or in a pair with

DA converters such as the CXD2558M, one of these

CXD2555Qs should be in the master mode to serve as the

source of clocks LRCK and BCK. The other CXD2555Qs are

used in the slave mode, with their clocks LRCK and BCK

supplied by the master CXD2555Q.

By setting a combination of XSLO and XSL1, with XSL2

fixed Low, the frequency of the external crystal oscillator

connected to XTLI and XTLO can be selected. In this case,

XCLK outputs a clock whose frequency is always 256 times

f , and UCLK outputs a clock that is half the crystal oscillator

TABLE 3.

frequency.

MODE

LRCK AND BCK I/O

When supplying the master clock fro some other external

source, not a crystal oscillator, use XTLI for this clock input

and leave XTLO open.

Master Mode

Slave Mode

Output

Input

TABLE 4.

CRYSTAL OSCILLATOR FREQUENCY

256f

XSL2

XSL1

XSL0

XCLK

256f

UCLK

128f

512f

256f

768f

256f

384f

1024f

256f

512f

INPUT

OUTPUT

LRCK

CXD2555Q

(SLAVE MODE)

(MASTER MODE)

BCK

CXD2555Q

BCK

INPUT

LRCK

BCK

CXD2558M

FIGURE 37. CONNECTION EXAMPLE

Crystal Oscillator Frequency Selection

(f = 8kHz to 24kHz)

512f

256f

TO EXTERNAL IC,

SUCH AS DSP

UCLK

CXD2555Q

XSL2

XSL1

XSL0

(Related Pins) XTLI, XTLO, XSLO, XSL1, XSL2, UNCLK,

XCLK

TO CXD2555Q IN

SLAVE MODE

With XSL2 fixed High, the device can be operated with low-

XCLK

XTL0

frequencies which may be 1/2 or 1/4 the normal f

XTL1

frequency. In this case, the frequency of the crystal oscillator

can be selected by setting a combination of XSL0 and XSL1

accordingly.

1024f

FIGURE 38. CONNECTION EXAMPLE

Example: When input level = 1.4V (4V

AD Converter Input Level

)

P-P

RMS

Given the constants shown in the Test Circuit on page 7, the

= 4200 • 1.4 - 1200 = 4680

AD converter input level V (operational amplifier input IN)

→ 4700 [Ω]

is such that 4V

(1.4V

) is equivalent to the full-scale

RMS

P-P

output. Also, the large-amplitude inputs are possible by

varying the AD converter input resistance value (R ). Use

the equation shown below to calculate this resistance value.

The AD converter generates full-scale outputs for inputs

equal to or greater than the values thus obtained.

= 420 • V [RMS] - 1200 [Ω]

4-308

1...5 6 789 10 11

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与CXD2555Q相关器件

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CXD2559	INTERSIL	1-Bit D/A Converter For Audio Application	获取价格
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CXD2564AM	SONY	1-bit Audio D/A Converter (with Digital Filter)	获取价格
CXD2565M	SONY	CXD2565M	获取价格
CXD2570	INTERSIL	1-Bit AD/DA Converter For Audio Application	获取价格
CXD2570Q	INTERSIL	1-Bit AD/DA Converter For Audio Application	获取价格

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