參數(shù)資料
型號: AD9523BCPZ-REEL7
廠商: Analog Devices Inc
文件頁數(shù): 41/60頁
文件大?。?/td> 0K
描述: IC INTEGER-N CLCK GEN 72LFCSP
標(biāo)準(zhǔn)包裝: 400
類型: 時鐘/頻率發(fā)生器,扇出緩沖器(分配)
PLL:
主要目的: 以太網(wǎng),光纖通道,SONET/SDH
輸入: CMOS
輸出: HSTL,LVCMOS,LVDS,LVPECL
電路數(shù): 1
比率 - 輸入:輸出: 2:14
差分 - 輸入:輸出: 是/是
頻率 - 最大: 1GHz
電源電壓: 1.71 V ~ 3.465 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 72-VFQFN 裸露焊盤,CSP
供應(yīng)商設(shè)備封裝: 72-LFCSP-VQ(10x10)
包裝: 帶卷 (TR)
配用: AD9523/PCBZ-ND - BOARD EVAL FOR AD9523
AD9523
Data Sheet
Rev. C | Page 46 of 60
Input PLL (PLL1) (Address 0x010 to Address 0x01D)
Table 35. PLL1 REFA R Divider Control
Address
Bits
Bit Name
Description
0x010
[7:0]
REFA R divider
10-bit REFA R divider, Bits[7:0] (LSB). Divide-by-1 to divide-by-1023.
00000000, 00000001: divide-by-1.
0x011
[1:0]
10-bit REFA R divider, Bits[9:8] (MSB)
Table 36. PLL1 REFB R Divider Control1
Address
Bits
Bit Name
Description
0x012
[7:0]
REFB R divider
10-bit REFB R divider, Bits[7:0] (LSB). Divide-by-1 to divide-by-1023.
00000000, 00000001: divide-by-1.
0x013
[1:0]
10-bit REFB R divider, Bits[9:8] (MSB)
1
Requires Register 0x01C, Bit 7 = 1 for division that is independent of REFA division.
Table 37. PLL1 Reference Test Divider
Address
Bits
Bit Name
Description
0x014
[7:6]
Reserved
[5:0]
REF_TEST divider
6-bit reference test divider. Divide-by-1 to divide-by-63.
000000, 000001: divide-by-1.
Table 38. PLL1 Reserved
Address
Bits
Bit Name
Description
0x015
[7:0]
Reserved
Table 39. PLL1 Feedback N Divider Control
Address
Bits
Bit Name
Description
0x016
[7:0]
PLL1 feedback N divider control
(N_PLL1)
10-bit feedback divider, Bits[7:0] (LSB). Divide-by-1 to divide-by-1023.
00000000, 00000001: divide-by-1.
0x017
[1:0]
10-bit feedback divider, Bits[1:0] (MSB)
Table 40. PLL1 Charge Pump Control
Address
Bits
Bit Name
Description
0x018
7
PLL1 charge pump tristate
Tristates the PLL1 charge pump.
[6:0]
PLL1 charge pump control
These bits set the magnitude of the PLL1 charge pump current. Granularity is ~0.5 μA
with a full-scale magnitude of ~63.5 μA.
0x019
[7:5]
Reserved
Reserved.
4
Enable SPI control of antibacklash
pulse width
Controls the functionality of Register 0x019, Bits[3:2].
0 (default): the device automatically controls the antibacklash period.
1: antibacklash period defined by Register 0x019, Bits[3:2].
[3:2]
Antibacklash pulse width control
Controls the PFD antibacklash period.
00 (default): minimum.
01: low.
10: high.
11: maximum.
These bits are ineffective unless Register 0x019, Bit 4 = 1.
[1:0]
PLL1 charge pump mode
Controls the mode of the PLL1 charge pump.
00 (default): tristate.
01: pump up.
10: pump down.
11: normal.
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