参数资料
型号: FS7145-02G-XTP
厂商: ON Semiconductor
文件页数: 5/17页
文件大小: 0K
描述: IC CLOCK GEN PLL PROG 16SSOP
标准包装: 1,500
类型: 时钟/频率合成器
PLL:
输入: 晶体
输出: CMOS,PECL
电路数: 1
比率 - 输入:输出: 2:1
差分 - 输入:输出: 无/是
频率 - 最大: 300MHz
除法器/乘法器: 是/无
电源电压: 3 V ~ 3.6 V
工作温度: 0°C ~ 70°C
安装类型: 表面贴装
封装/外壳: 16-SSOP(0.209",5.30mm 宽)
供应商设备封装: 16-SSOP
包装: 带卷 (TR)
FS7140, FS7145
http://onsemi.com
13
Table 9. DEVICE CONFIGURATION BITS
Name
Description
REFDSRC
Reference divider source
[0] = crystal oscillator / [1] = REF pin
FBKDSRC
Feedback divider source
[0] = VCO output / [1] = post divider output
SHUT1
Shutdown1
[0] = normal / [1] = powered down
SHUT2
Shutdown2
[0] = normal / [1] = powered down
CMOS
CLKP/CLKN output mode
[0] = PECL output / [1] CMOS output
Table 10. MAIN LOOP TUNING BITS
Name
Description
CP[1:0]
Charge pump current
[00]
2.0 mA
[01]
4.5 mA
[10]
11.0 mA
[11]
22.5 mA
LR[1:0]
Loop filter resistor select
[00]
400 KW
[01]
133 KW
[10]
30 KW
[11]
12 KW
LC
Loop filter capacitor select
[0]
185 pF
[1]
500 pF
Table 11. PLL DIVIDER CONTROL BITS
Name
Description
REFDIV[11:0]
Reference divider (NR)
FBKDIV[13:0]
Feedback divider (NR)
Table 12. SYNC CONTROL BITS (FS7145 only)
Name
Description
SYNCEN
Sync enable
[0] = disabled / [1] = enabled
SYNCPOL
Sync polarity
[0] = negative edge / [1] = positive edge
Table 13. POST DIVIDER CONTROL BITS
Name
Description
POST1[3:0]
Post divider #1 (NP1) modulus
[0000]
1
[0001]
2
[0010]
3
[0011]
4
[0100]
5
[0101]
6
[0110]
7
[0111]
8
[1000]
9
[1001]
10
[1010]
11
[1011]
12
[1100]
Do not use
[1101]
[1110]
[1111]
POST2[3:0]
Post divider #2 (NP2) modulus
[0000]
1
[0001]
2
[0010]
3
[0011]
4
[0100]
5
[0101]
6
[0110]
7
[0111]
8
[1000]
9
[1001]
10
[1010]
11
[1011]
12
[1100]
Do not use
[1101]
[1110]
[1111]
POST3[1:0]
Post divider #3 (NP3) modulus
[00]
1
[01]
2
[10]
4
[11]
8
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