參數(shù)資料
型號(hào): AD9520-5BCPZ
廠商: Analog Devices Inc
文件頁(yè)數(shù): 59/76頁(yè)
文件大?。?/td> 0K
描述: IC CLOCK GEN EXT VCO 64-LFCSP
設(shè)計(jì)資源: Synchronizing Multiple AD9910 1 GSPS Direct Digital Synthesizers (CN0121)
Phase Coherent FSK Modulator (CN0186)
標(biāo)準(zhǔn)包裝: 1
類型: 時(shí)鐘發(fā)生器,扇出配送
PLL:
輸入: CMOS,LVDS,LVPECL
輸出: CMOS,LVPECL
電路數(shù): 1
比率 - 輸入:輸出: 2:12,2:24
差分 - 輸入:輸出: 是/是
頻率 - 最大: 2.4GHz
除法器/乘法器: 是/無(wú)
電源電壓: 3.135 V ~ 3.465 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 64-VFQFN 裸露焊盤,CSP
供應(yīng)商設(shè)備封裝: 64-LFCSP-VQ(9x9)
包裝: 托盤
產(chǎn)品目錄頁(yè)面: 776 (CN2011-ZH PDF)
AD9520-5
Data Sheet
Rev. A | Page 62 of 76
Reg.
Addr.
(Hex)
Bits Name
Description
[5:0] LD pin control
Selects the signal that is connected to the LD pin.
Bit
5
Bit
4
Bit
3
Bit
2
Bit
1
Bit
0
Level or
Dynamic
Signal
Signal at LD Pin
0
LVL
Digital lock detect (high = lock; low = unlock, default).
0
1
DYN
P-channel, open-drain lock detect (analog lock detect).
0
1
0
DYN
N-channel, open-drain lock detect (analog lock detect).
0
1
HIZ
Tristate (high-Z) LD pin.
0
1
0
CUR
Current source lock detect (110 A when DLD is true).
0
X
LVL
Ground (dc). Used for all settings of these bits not otherwise specified in this table.
The selections that follow are also used for REFMON and STATUS pin control.
1
0
LVL
Ground (dc).
1
0
1
DYN
REF1 clock (differential reference when in differential mode).
1
0
1
0
DYN
REF2 clock (N/A in differential mode).
1
0
1
DYN
Selected reference to PLL (differential reference when in differential mode).
1
0
1
0
DYN
Unselected reference to PLL (not available in differential mode).
1
0
1
0
1
LVL
Status of selected reference (status of differential reference); active high.
1
0
1
0
LVL
Status of unselected reference (not available in differential mode); active high.
1
0
1
LVL
Status of REF1 frequency; active high.
1
0
1
0
LVL
Status of REF2 frequency; active high.
1
0
1
0
1
LVL
(Status of REF1 frequency) AND (status of REF2 frequency).
1
0
1
0
1
0
LVL
(DLD) AND (status of selected reference) AND (status of CLK).
1
0
1
0
1
LVL
Status of CLK frequency; active high.
1
0
1
0
LVL
Selected reference (low = REF1, high = REF2).
1
0
1
0
1
LVL
DLD; active high.
1
0
1
0
LVL
Holdover active; active high.
1
0
1
LVL
N/A. Do not use.
1
0
LVL
VS (PLL power supply).
1
0
1
DYN
REF1 clock (differential reference when in differential mode).
1
0
1
0
DYN
REF2 clock (not available in differential mode).
1
0
1
DYN
Selected reference to PLL (differential reference when in differential mode).
1
0
1
0
DYN
Unselected reference to PLL (not available when in differential mode).
1
0
1
0
1
LVL
Status of selected reference (status of differential reference); active low.
1
0
1
0
LVL
Status of unselected reference (not available in differential mode); active low.
1
0
1
LVL
Status of REF1 frequency; active low.
1
0
LVL
Status of REF2 frequency; active low.
1
0
1
LVL
(Status of REF1 frequency) AND (status of REF2 frequency).
1
0
1
0
LVL
(DLD) AND (status of selected reference) AND (status of VCO)
1
0
1
LVL
Status of CLK frequency; active low.
1
0
LVL
Selected reference (low = REF2, high = REF1).
1
0
1
LVL
DLD; active low.
1
0
LVL
Holdover active; active low.
1
LVL
N/A. Do not use.
0x01B 7
Enable CLK
frequency monitor
Enables or disables the external CLK frequency monitor.
0: disables the external CLK frequency monitor (default).
1: enables the external CLK frequency monitor.
6
Enable REF2
(REFIN) frequency
monitor
Enables or disables the REF2 frequency monitor.
0: disables the REF2 frequency monitor (default).
1: enables the REF2 frequency monitor.
5
Enable REF1
(REFIN) frequency
monitor
REF1 (REFIN) frequency monitor enabled; this is for both REF1 (single-ended) and REFIN (differential) inputs (as selected by
differential reference mode).
0: disables the REF1 (REFIN) frequency monitor (default).
1: enables the REF1 (REFIN) frequency monitor.
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