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參數(shù)資料
型號: AD9552BCPZ-REEL7
廠商: Analog Devices Inc
文件頁數(shù): 20/32頁
文件大?。?/td> 0K
描述: IC PLL CLOCK GEN LP 32LFCSP
設(shè)計資源: Clock Distribution Circuit with Pin-Programmable Output Frequency, Output Logic Levels, and Fanout (CN0152)
標準包裝: 1,500
類型: 時鐘發(fā)生器
PLL: 帶旁路
輸入: 時鐘,晶體
輸出: CMOS,LVDS,LVPECL
電路數(shù): 1
比率 - 輸入:輸出: 2:2
差分 - 輸入:輸出: 無/是
頻率 - 最大: 900MHz
除法器/乘法器: 是/無
電源電壓: 3.3V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 32-VFQFN 裸露焊盤,CSP
供應(yīng)商設(shè)備封裝: 32-LFCSP-VQ(5x5)
包裝: 帶卷 (TR)
Data Sheet
AD9552
Rev. E | Page 27 of 32
Address
Bit
Bit Name
Description
0x18
[7:3]
P
1 divider
Bits[4:0] of the 6-bit P
1 divider for OUT1 (1 ≤ P1 ≤ 63). Do not set these bits to 000000. Default is
P
1 = 10 0000 (32). The P1 bits are ineffective unless Register 0x19[7] = 1.
[2:0]
P
0 divider
The 3-bit P
0 divider for OUT1. The P0 divide value is as follows:
000 = 4 (default).
001 = 5.
010 = 6.
011 = 7.
100 = 8.
101 = 9.
110 = 10.
111 = 11.
The P
0 bits are ineffective unless Register 0x19[7] = 1.
0x19
7
Enable SPI control of
OUT1 dividers
Controls functionality of OUT1 dividers.
0 = OUT1 dividers defined by the Y[5:0] pins (default).
1 = contents of Register 0x17 and Register 0x18 define OUT1 dividers (P
0 and P1).
[6:0]
Unused
Unused.
Input Receiver and Band Gap Control (Register 0x1A)
Table 22.
Address
Bit
Bit Name
Description
0x1A
7
Receiver reset
Input receiver reset control. This is an autoclearing bit.
0 = normal operation (default).
1 = reset input receiver logic.
[6:2]
Band gap voltage adjust
Controls the band gap voltage setting from minimum (0 0000) to maximum (1 1111).
Default is 0 0000.
1
Unused
Unused.
0
Enable SPI control of band gap
voltage
Enables functionality of Bits[6:2].
0 = the device automatically selects receiver band gap voltage (default).
1 = Bits[6:2] define the receiver band gap voltage.
XTAL Control (Register 0x1B to Register 0x1D)
Table 23.
Address
Bit
Bit Name
Description
0x1B
7
Disable SPI control of XTAL
tuning capacitance
Disables functionality of Bits[5:0].
0 = tuning capacitance defined by Bits[5:0].
1 = the device automatically selects XTAL tuning capacitance (default).
6
Unused
Unused.
[5:0]
XTAL tuning capacitor control
Capacitance value coded as inverted binary (0.25 pF per bit); that is, 111111 is 0 pF,
111110 is 0.25 pF, and so on. The default value, 000000, is 15.75 pF.
0x1C
[7:0]
Unused
Unused.
0x1D
[7:3]
Unused
Unused.
2
Select 2× frequency multiplier
Select/bypass the 2× frequency multiplier.
0 = bypassed (default).
1 = selected.
1
Unused
Unused.
0
Use crystal resonator
Automatic external reference select override.
0 = the device automatically selects the external reference path if an external
reference signal is present (default).
1 = the device uses the crystal resonator input whether or not an external reference
signal is present.
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