參數(shù)資料
型號(hào): AD9523BCPZ-REEL7
廠商: Analog Devices Inc
文件頁(yè)數(shù): 48/60頁(yè)
文件大?。?/td> 0K
描述: IC INTEGER-N CLCK GEN 72LFCSP
標(biāo)準(zhǔn)包裝: 400
類型: 時(shí)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 52 of 60
Table 52. PLL1 Output Control (PLL1_OUT, Pin 72)
Address
Bits
Bit Name
Description
0x1BA
[7:5]
Reserved
4
PLL1 output CMOS driver
strength
CMOS driver strength
1: weak
0: strong
[3:0]
PLL1 output divider
0000: divide-by-1
0001: divide-by-2 (default)
0010: divide-by-4
0100: divide-by-8
1000: divide-by-16
No other inputs permitted
Table 53. PLL1 Output Channel Control
Address
Bits
Bit Name
Description
0x1BB
7
PLL1 output driver power-down
[6:4]
Reserved
3
Route VCXO clock to
Channel 3 divider input
1: channel uses VCXO clock. Routes VCXO clock to divider input.
0: channel uses VCO divider output clock
2
Route VCXO clock to
Channel 2 divider input
1: channel uses VCXO clock. Routes VCXO clock to divider input.
0: channel uses VCO divider output clock
1
Route VCXO clock to
Channel 1 divider input
1: channel uses VCXO clock. Routes VCXO clock to divider input.
0: channel uses VCO divider output clock
0
Route VCXO clock to
Channel 0 divider input
1: channel uses VCXO clock. Routes VCXO clock to divider input.
0: channel uses VCO divider output clock
Readback (Address 0x22C to Address 0x22D)
Table 54. Readback Registers (Readback 0 and Readback 1)
Address
Bits
Bit Name
Description
0x22C
7
Status PLL2 reference clock
1: OK
0: off/clocks are missing
6
Status PLL1 feedback clock
1: OK
0: off/clocks are missing
5
Status VCXO
1: OK
0: off/clocks are missing
4
Status REF_TEST
1: OK
0: off/clocks are missing
3
Status REFB
1: OK
0: off/clocks are missing
2
Status REFA
1: OK
0: off/clocks are missing
1
Lock detect PLL2
1: locked
0: unlocked
0
Lock detect PLL1
1: locked
0: unlocked
0x22D
[7:4]
Reserved
3
Holdover active
1: holdover is active (both references are missing)
0: normal operation
2
Selected reference
(in auto mode)
Selected reference (applies only when the device automatically selects the reference;
for example, not in manual control mode)
1: REFB
0: REFA
1
Reserved
0
VCO calibration in progress
1: VCO calibration in progress
0: VCO calibration not in progress
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