ICS1531 参数 Datasheet PDF下载

型号：	ICS1531
PDF下载：	下载PDF文件查看货源
内容描述：	888位MSPS A / D转换器与行同步时钟发生器 [Triple 8-bit MSPS A/D Converters with Line-Locked Clock Generator]
分类和应用：	转换器时钟发生器
文件页数/大小：	76 页 / 525 K
品牌：	ICSI [ INTEGRATED CIRCUIT SOLUTION INC ]

ICS1531 Data Sheet - Preliminary

Chapter 6 Register Set

6.5.27 Register 2Ah: MCLK-SSOE

The MCLK-SSOE (MCLK Spread Spectrum Output Enable) Register is used to control the gain of the

MCLK PFD and spread spectrum. (To select values, see Section 7.3, “Programming Spread Spectrum”.)

Table 6-27. MCLK-SSOE Register

Bit

Bit Name

Bit Definition

Ac- Spec.

cess Func.

Re-

set

2A:7-

2A:6

MCLK_SS [1-0]

MCLK Spread-Spectrum (Gain Select) [1-0].

• ^{0 = The gain is 1.}

R/W

D-MK

• ^{1 = The gain is 2.}

• ^{2 = The gain is 4.}

• ^{3 = The gain is 8.}

^R•^es^S^e^e^rv^e^e^S^d^e^.^{ction 6.1, “Reserved Bits”.}

• ^{This bit can be programmed to ‘0’.}

2A:5

Reserved

–

2A:4-

2A:2

MCLK_PFD [2-0] MCLK Phase/Frequency Detector (Gain Select) [2-0].

R/W

D-MK

These bits determine the gain for the MCLK

^P•^ha⁰^se⁼^/F^T^r^h^e^e^qu^g^e^aⁿⁱⁿ^cy^is^D¹^e^.^tector.

• ^{1 = The gain is 2.}

• ^{2 = The gain is 4.}

• ^{3 = The gain is 8.}

• ^{4 = The gain is 16, and so forth.}

2A:1-

2A:0

MCLK_OSD

[1-0]

MCLK Output Scaler Divider [1-0].

These bits determine the value for dividing the MCLK output

scaler.

R/W

D-MK

• ^{0 = Division is by 1.}

• ^{1 = Division is by 2.}

• ^{2 = Division is by 4.}

• ^{3 = Division is by 8.}

6.5.28 Register 2Bh: MCLK-OE

The MCLK-OE (MCLK Output Enable) Register is used to enable the MCLK output and spread-spectrum

functionality. (To select values, see Section 7.3, “Programming Spread Spectrum”.)

Table 6-28. MCLK-OE Register

Bit

Bit Name

Bit Definition

Ac- Spec.

cess Func.

Re-

set

^R•^es^S^e^e^rv^e^e^S^d^e^.^{ction 6.1, “Reserved Bits”.}

• ^{These bits can be programmed to ‘0’.}

2B:7-

2B:2

Reserved

–

2B:1

2B:0

MCLK_SSENB

MCLK_OE

MCLK Spread-Spectrum Enable.

R/W

• ^{0 = Disable MCLK spread-spectrum functionality.}

• ^{1 = Enable MCLK spread-spectrum functionality.}

MCLK Output Enable.

• ^{0 = Disable MCLK output.}

• ^{1 = Enable MCLK output.}

ICS1531 Rev N 12/1/99

December, 1999

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