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參數(shù)資料
| 型號(hào)： | ICS94201 |
| 英文描述： | Programmable System Frequency Generator for PII/III⑩ |
| 中文描述： | 可編程系統(tǒng)頻率發(fā)生器有價(jià)證券/三⑩ |
| 文件頁(yè)數(shù)： | 9/18頁(yè) |
| 文件大小： | 357K |
| 代理商： | ICS94201 |
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9
ICS94201
Byte 16: Spread Sectrum Control Register
Byte 17: Spread Spectrum Control Register
Note: Please utilize software utility provided by ICS
Application Engineering to configure spread spectrum.
Incorrect spread percentage may cause system failure.
Note: Please utilize software utility provided by ICS
Application Engineering to configure spread spectrum.
Incorrect spread percentage may cause system failure.
Byte 18: Output Dividers Control Register
Byte 19: Output Dividers Control Register
Note: Changing bits in these registers results in frequency
divider ratio changes. Incorrect configuration of
group gear ratio can cause system malfunction.
Note: Changing bits in these registers results in frequency
divider ratio changes. Incorrect configuration of
group gear ratio can cause system malfunction.
Notes:
1. PWD = Power on Default
2. The power on default for byte 16-20 depends on the harware (latch inputs FS[0:4]) or IIC (Byte 0 bit [1:7]) setting. Be sure to read
back and re-write the values of these 5 registers when VCO frequency change is desired for the first pass.
t
t
B
t
B
t
B
t
B
t
B
t
B
t
B
t
B
B
D
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X
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X
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D
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D
7
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2
1
0
7
B
6
B
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B
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B
3
B
2
B
1
B
0
B
l
l
l
l
l
l
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C
C
C
C
C
C
C
C
X
X
X
X
X
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X
t
t
t
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t
t
p
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7
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2
1
0
5
4
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1
0
1
B
1
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1
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1
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1
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1
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9
B
8
B
l
l
l
l
l
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l
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C
C
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C
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t
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t
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U
U
U
U
U
U
U
M
M
M
M
M
M
M
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t
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B
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7
6
5
4
3
2
1
0
7
6
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5
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4
B
3
B
2
B
1
B
0
B
S
S
S
S
S
S
S
S
d
d
d
d
d
d
d
d
a
S
a
S
a
S
a
S
a
S
a
S
a
S
a
S
t
t
B
t
B
t
B
t
B
t
B
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B
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B
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B
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W
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0
X
X
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X
X
X
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2
B
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7
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3
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0
6
5
4
c
c
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r
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d
d
d
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d
d
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d
D
d
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a
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2
2
B
B
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B
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2
1
0
1
1
1
9
8
S
S
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Note:
1. User needs to ensure step 3 & 7 is carried out. Systems with the wrong spread percentage and/or group to group divider ratio
programmed into bytes 16-20 could be unstable. Step 3 & 7 assure the correct spread and gear ratio.
2. If VCO, REF divider values or phase detector stability are out of range, the device may fail to function correctly.
3. Follow min and max VCO frequency range provided. Internal PLL could be unstable if VCO frequency is too fast or too slow.
Use 14.31818MHz x VCO/REF divider values to calculate the VCO frequency (MHz).
4. Users can also utilize software utility provided to program the VCO frequency from ICS Application Engineering.
5. Spread percent needs to be calculated based on VCO frequency, spread modulation frequency and spread amount desired.
See Application note for software support.
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| ICS94201DF | 功能描述:IC FREQ GENERATOR PROGR 56-SSOP RoHS:否 類別:集成電路 (IC) >> 時(shí)鐘/計(jì)時(shí) - 專用 系列:- 標(biāo)準(zhǔn)包裝:1,500 系列:- 類型:時(shí)鐘緩沖器/驅(qū)動(dòng)器 PLL:是 主要目的:- 輸入:- 輸出:- 電路數(shù):- 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(yīng)商設(shè)備封裝:28-SSOP 包裝:帶卷 (TR) 其它名稱:93786AFT |
| ICS94201DFLF | 功能描述:IC FREQ GENERATOR PROGR 56-SSOP RoHS:是 類別:集成電路 (IC) >> 時(shí)鐘/計(jì)時(shí) - 專用 系列:- 標(biāo)準(zhǔn)包裝:1,500 系列:- 類型:時(shí)鐘緩沖器/驅(qū)動(dòng)器 PLL:是 主要目的:- 輸入:- 輸出:- 電路數(shù):- 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(yīng)商設(shè)備封裝:28-SSOP 包裝:帶卷 (TR) 其它名稱:93786AFT |
| ICS94201DFLFT | 功能描述:IC FREQ GENERATOR PROGR 56-SSOP RoHS:是 類別:集成電路 (IC) >> 時(shí)鐘/計(jì)時(shí) - 專用 系列:- 標(biāo)準(zhǔn)包裝:1,500 系列:- 類型:時(shí)鐘緩沖器/驅(qū)動(dòng)器 PLL:是 主要目的:- 輸入:- 輸出:- 電路數(shù):- 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(yīng)商設(shè)備封裝:28-SSOP 包裝:帶卷 (TR) 其它名稱:93786AFT |
| ICS94201DFT | 功能描述:IC FREQ GENERATOR PROGR 56-SSOP RoHS:否 類別:集成電路 (IC) >> 時(shí)鐘/計(jì)時(shí) - 專用 系列:- 標(biāo)準(zhǔn)包裝:1,500 系列:- 類型:時(shí)鐘緩沖器/驅(qū)動(dòng)器 PLL:是 主要目的:- 輸入:- 輸出:- 電路數(shù):- 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(yīng)商設(shè)備封裝:28-SSOP 包裝:帶卷 (TR) 其它名稱:93786AFT |
| ICS94201YFT | 制造商:ICS 制造商全稱:ICS 功能描述:Programmable System Frequency Generator for PII/III⑩ |
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