參數(shù)資料
型號: EL4585CSZ-T13
廠商: Intersil
文件頁數(shù): 10/15頁
文件大?。?/td> 0K
描述: IC GENLOCK HORZ 8FSC 16-SOIC
標準包裝: 2,500
類型: 鎖相環(huán)路(PLL)
PLL:
輸入: CMOS,TTL
輸出: CMOS,TTL
電路數(shù): 1
比率 - 輸入:輸出: 3:1
差分 - 輸入:輸出: 無/無
頻率 - 最大: 36MHz
除法器/乘法器: 是/無
電源電壓: 5V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 16-SOIC(0.154",3.90mm 寬)
供應商設備封裝: 16-SOIC
包裝: 帶卷 (TR)
4
FN7175.4
September 3, 2009
Pin Descriptions
Pin NUMBER
PIN NAME
FUNCTION
1, 2, 16
PROG B, C, A
Digital inputs to select ÷ N value for internal counter. See Table 1 for values.
3
OSC/VCO OUT
Output of internal inverter/oscillator. Connect to external crystal or LC tank VCO circuit.
4
VDD (A)
Analog positive supply for oscillator, PLL circuits.
5
OSC/VCO IN
Input from external VCO.
6
VSS (A)
Analog ground for oscillator, PLL circuits.
7
CHARGE PUMP
OUT
Connect to loop filter. If the HSYNC phase is leading or HSYNC frequency > CLK ÷ 2N, current is pumped
into the filter capacitor to increase VCO frequency. If HSYNC phase is lagging or frequency < CLK ÷ 2N,
current is pumped out of the filter capacitor to decrease VCO frequency. During coast mode or when
locked, charge pump goes to a high impedance state.
8
DIV SELECT
Divide select input. When high, the internal divider is enabled and EXT DIV becomes a test pin, outputting
CLK ÷ 2N. When low, the internal divider is disabled and EXT DIV is an input from an external ÷N.
9
COAST
Three-state logic input. Low (< 1/3*VCC) = normal mode, Hi Z (or 1/3 to 2/3*VCC) = fast lock mode,
High (> 2/3*VCC) = coast mode.
10
HSYNC IN
Horizontal sync pulse (CMOS level) input.
11
VDD (D)
Positive supply for digital, I/O circuits.
12
LOCK DET
Lock detect output. Low level when PLL is locked. Pulses high when out of lock.
13
EXT DIV
External divide input when DIV SEL is low, internal ÷ 2N output when DIV SEL is high.
14
VSS (D)
Ground for digital, I/O circuits.
15
CLK OUT
Buffered output of the VCO.
TABLE 1. VCO DIVISORS
PROG A (PIN 16)
PROG B (PIN 1)
PROG C (PIN 2)
DIV VALUE (N)
0
1702
0
1
1728
0
1
0
1888
0
1
2270
1
0
1364
1
0
1
1716
1
0
1560
1
1820
EL4585
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