參數(shù)資料
型號(hào): AD9523BCPZ-REEL7
廠商: Analog Devices Inc
文件頁(yè)數(shù): 47/60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(pán),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
Data Sheet
AD9523
Rev. C | Page 51 of 60
Clock Distribution (Register 0x190 to Register 0x1B9)
Table 51. Channel 0 to Channel 13 Control (This Same Map Applies to All 14 Channels)
Address
Bits
Bit Name
Description
0x190
7
Invert divider output
Inverts the polarity of the divider’s output clock.
6
Ignore sync
0: obeys chip-level SYNC signal (default).
1: ignores chip-level SYNC signal.
5
Power -down channel
1: powers down the entire channel.
0: normal operation.
4
Lower power mode
(differential modes only)
Reduces power used in the differential output modes (LVDS/LVPECL/HSTL). This
reduction may result in power savings, but at the expense of performance. Note that
this bit does not affect output swing and current, just the internal driver power.
1: low strength/lower power.
0: normal operation.
[3:0]
Driver mode
Driver mode.
Bit 3
Bit 2
Bit 1
Bit 0
Driver Mode
0
Tristate output
0
1
LVPECL (8 mA)
0
1
0
LVDS (3.5 mA)
0
1
LVDS (7 mA)
0
1
0
HSTL-0 (16 mA)
0
1
0
1
HSTL-1 (8 mA)
0
1
0
CMOS (both outputs in phase)
+ Pin: true phase relative to divider output
Pin: true phase relative to divider output
0
1
CMOS (opposite phases on outputs)
+ Pin: true phase relative to divider output
Pin: complement phase relative to divider output
1
0
CMOS
+ Pin: true phase relative to divider output
Pin: high-Z
1
0
1
CMOS
+ Pin: high-Z
Pin: true phase relative to divider output
1
0
1
0
CMOS
+ Pin: high-Z
Pin: high-Z
1
0
1
CMOS (both outputs in phase)
+ Pin: complement phase relative to divider output
Pin: complement phase relative to divider output
1
0
CMOS (both outputs out of phase)
+ Pin: complement phase relative to divider output
Pin: true phase relative to divider output
1
0
1
CMOS
+ Pin: complement phase relative to divider output
Pin: high-Z
1
0
CMOS
+ Pin: high-Z
Pin: complement phase relative to divider output
1
Tristate output
0x191
[7:0]
Channel divider,
Bits[7:0] (LSB)
Division = Channel Divider Bits[9:0] + 1. For example, [9:0] = 0 is divided by 1, [9:0] = 1
is divided by 2 … [9:0] = 1023 is divided by 1024. 10-bit channel divider, Bits[7:0] (LSB).
0x192
[7:2]
Divider phase
Divider initial phase after a sync is asserted relative to the divider input clock (from the
VCO divider output). LSB = of a period of the divider input clock.
Phase = 0: no phase offset.
Phase = 1: period offset, …
Phase = 63: 31 period offset.
[1:0]
Channel divider, Bits[9:8] (MSB)
10-bit channel divider, Bits[9:8] (MSB).
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