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參數資料
| 型號： | ICS9161A |
| 英文描述： | Low-Power High-Performance Impact<TM> PAL<R> Circuits 28-PLCC 0 to 75 |
| 中文描述： | 雙頻率可編程圖形發生器 |
| 文件頁數： | 1/15頁 |
| 文件大小： | 452K |
| 代理商： | ICS9161A |
Integrated
Circuit
Systems, Inc.
General Description
The
ICS9161A
is a fully programmable graphics clock
generator. It can generate user-specified clock frequencies
using an externally generated input reference or a single crystal.
The output frequency is programmed by entering a 24-bit
digital word through the serial port. Two fully user-
programmable phase-locked loops are offered in a single
package. One PLL is designed to drive the memory clock,
while the second drives the video clock. The outputs may be
changed on-the-fly to any desired frequency between 390 kHz
and 120 MHz. The
ICS9161A
is ideally suited for any design
where multiple or varying frequencies are required.
Features
Pin-for-pin and function compatible with ICD2061A
Dual programmable graphics clock generator
Memory and video clocks are individually
programmable on-the-fly
Ideal for designs where multiple or varying frequencies
are required
Increased frequency resolution from optional pre-
divide by 2 on the M counter
Output enable feature available for tristating outputs
Independent clock outputs range from 390 kHz to 120
MHz for VDD >4.75V
Power-down capabilities
Low power, high speed 0.8μ CMOS technology
Glitch-free transitions
Available in 16-pin, 300-mil SOIC or PDIP package
ICS9161A
9161
Block Diagram
Dual Programmable Graphics Frequency Generator
9161-A RevG 10/04/00
This part is ideal for graphics applications. It generates low
jitter, high speed pixel clocks. It can be used to replace multiple,
expensive high speed crystal oscillators. The flexibility of the
device allows it to generate non-standard graphics clocks.
The
ICS9161A
is also ideal in disk drives. It can generate
zone clocks for constant density recording schemes. The low
profile, 16-pin SOIC or PDIP package and low jitter outputs
are especially attractive in board space critical disk drives.
The leader in the area of multiple output clocks on a single
chip, ICS has been shipping graphics frequency generators
since October, 1990, and is constantly improving the phase-
locked loop. The
ICS9161A
incorporates a patented fourth
generation PLL that offers the best jitter performance available.
ICS reserves the right to make changes in the device data identified in this publication
without further notice. ICS advises its customers to obtain the latest version of all
device data to verify that any information being relied upon by the customer is current
and accurate.
EXTCLK
EXTSEL
VCO OUTPUT
DIVIDER
R=1,2,4,8,16
32,64,128
VCO
CMOS
OUTPUT
DRIVER
MCLK
OE
VCO
DIVIDE
(N÷)
VCO OUTPUT
DIVIDER
R=1,2,4,8,16
32,64,128
VCO
REF
DIVIDE
(M÷)
MUX
CMOS
OUTPUT
DRIVER
VCLK
D14-D20
7
D0-D3
4
D11-D13
3
REF
f
D14-D20
7
D4-D10
7
D0-D3
4
D11-D13
3
24
24
MCLK
(D0-D20)
21
21
VCLK
(D0-D20)
21
21
21
REGISTERS
3
ADDRESS
INIT
ROM
POR
INIT1
INIT2
SEL0-CLK
SEL1-DATA
DECODE
LOGIC
21
DATA
CONTROL REG
XTAL
OSC
X1
X2
PD
3-TO-1
MUX
Pscale
P= 2 or 4
REF
DIVIDE
(M÷)
D4-D10
7
VCO
DIVIDE
(N÷)
Pscale
P= 2
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PDF描述 |
|---|---|
| ICS9161A-01CW16 | Dual Programmable Graphics Frequency Generator |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| ICS9161A-01CN16 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Video/Graphics Clock Generator |
| ICS9161A-01CW | 制造商:ICS 功能描述: 制造商:INT_CIR_SYS 功能描述: |
| ICS9161A-01CW16 | 功能描述:IC FREQUENCY GENERATOR 16-SOIC RoHS:否 類別:集成電路 (IC) >> 時鐘/計時 - 專用 系列:- 標準包裝:1,500 系列:- 類型:時鐘緩沖器/驅動器 PLL:是 主要目的:- 輸入:- 輸出:- 電路數:- 比率 - 輸入:輸出:- 差分 - 輸入:輸出:- 頻率 - 最大:- 電源電壓:3.3V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-SSOP（0.209"，5.30mm 寬） 供應商設備封裝:28-SSOP 包裝:帶卷 (TR) 其它名稱:93786AFT |
| ICS9161A-01CW16LF | 功能描述:IC FREQUENCY GENERATOR 16-SOIC RoHS:是 類別:集成電路 (IC) >> 時鐘/計時 - 專用 系列:- 標準包裝:1 系列:- 類型:時鐘/頻率發生器，多路復用器 PLL:是 主要目的:存儲器，RDRAM 輸入:晶體 輸出:LVCMOS 電路數:1 比率 - 輸入:輸出:1:2 差分 - 輸入:輸出:無/是 頻率 - 最大:400MHz 電源電壓:3 V ~ 3.6 V 工作溫度:0°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-TSSOP（0.173"，4.40mm 寬） 供應商設備封裝:16-TSSOP 包裝:Digi-Reel® 其它名稱:296-6719-6 |
| ICS9161A-01CW16LFT | 功能描述:IC FREQUENCY GENERATOR 16-SOIC RoHS:是 類別:集成電路 (IC) >> 時鐘/計時 - 專用 系列:- 標準包裝:28 系列:- 類型:時鐘/頻率發生器 PLL:是 主要目的:Intel CPU 服務器 輸入:時鐘 輸出:LVCMOS 電路數:1 比率 - 輸入:輸出:3:22 差分 - 輸入:輸出:無/是 頻率 - 最大:400MHz 電源電壓:3.135 V ~ 3.465 V 工作溫度:0°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:64-TFSOP （0.240"，6.10mm 寬） 供應商設備封裝:64-TSSOP 包裝:管件 |
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