参数资料
型号: AD9510BCPZ-REEL7
厂商: Analog Devices Inc
文件页数: 45/56页
文件大小: 0K
描述: IC CLOCK DIST 8OUT PLL 64LFCSP
标准包装: 750
类型: 扇出缓冲器(分配),除法器
PLL:
输入: 时钟
输出: CMOS,LVDS,LVPECL
电路数: 1
比率 - 输入:输出: 2:8
差分 - 输入:输出: 是/是
频率 - 最大: 1.2GHz
除法器/乘法器: 是/无
电源电压: 3.135 V ~ 3.465 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 64-VFQFN 裸露焊盘,CSP
供应商设备封装: 64-LFCSP-VQ(9x9)
包装: 带卷 (TR)
配用: AD9510-VCO/PCBZ-ND - BOARD EVALUATION FOR AD9510
AD9510/PCBZ-ND - BOARD EVALUATION FOR AD9510
Data Sheet
AD9510
Rev. B | Page 5 of 56
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments
NOISE CHARACTERISTICS
In-Band Noise of the Charge Pump/
Phase Frequency Detector (In-Band
Means Within the LBW of the PLL)
Synthesizer phase noise floor estimated by measuring
the in-band phase noise at the output of the VCO and
subtracting 20logN (where N is the N divider value)
At 50 kHz PFD Frequency
172
dBc/Hz
At 2 MHz PFD Frequency
156
dBc/Hz
At 10 MHz PFD Frequency
149
dBc/Hz
At 50 MHz PFD Frequency
142
dBc/Hz
PLL Figure of Merit
218 +
10 × log
(fPFD)
dBc/Hz
Approximation of the PFD/CP phase noise floor (in the
flat region) inside the PLL loop bandwidth; when
running closed loop this phase noise is gained up
by 20 × log(N)3
PLL DIGITAL LOCK DETECT WINDOW4
Signal available at STATUS pin when selected by
Register 0x08[5:2]
Required to Lock (Coincidence of Edges)
Selected by Register 0x0D
Low Range (ABP 1.3 ns, 2.9 ns)
3.5
ns
Bit[5] = 1b.
High Range (ABP 1.3 ns, 2.9 ns)
7.5
ns
Bit[5] = 0b.
High Range (ABP 6 ns)
3.5
ns
Bit[5] = 0b.
To Unlock After Lock (Hysteresis)4
Selected by Register 0x0D
Low Range (ABP 1.3 ns, 2.9 ns)
7
ns
Bit[5] = 1b.
High Range (ABP 1.3 ns, 2.9 ns)
15
ns
Bit[5] = 0b.
High Range (ABP 6 ns)
11
ns
Bit[5] = 0b.
1
REFIN and REFINB self-bias points are offset slightly to avoid chatter on an open input condition.
2
CLK2 is electrically identical to CLK1; the distribution-only input can be used as differential or single-ended input (see the Clock Inputs section).
3
Example: 218 + 10 × log(fPFD) + 20 × log(N) gives the values for the in-band noise at the VCO output.
4
For reliable operation of the digital lock detect, the period of the PFD frequency must be greater than the unlock-after-lock time.
CLOCK INPUTS
Table 2.
Parameter
Symbol
Min
Typ
Max
Unit
Test Conditions/Comments
CLOCK INPUTS (CLK1, CLK2)1
Input Frequency
0
1.6
GHz
Input Sensitivity
mV p-p
Jitter performance can be improved with higher slew
rates (greater swing)
Input Level
V p-p
Larger swings turn on the protection diodes and can
degrade jitter performance
Input Common-Mode Voltage
VCM
1.5
1.6
1.7
V
Self-biased; enables ac coupling
Input Common-Mode Range
VCMR
1.3
1.8
V
With 200 mV p-p signal applied; dc-coupled
Input Sensitivity, Single-Ended
150
mV p-p
CLK2 ac-coupled, CLK2B ac-bypassed to RF ground
Input Resistance
4.0
4.8
5.6
Self-biased
Input Capacitance
2
pF
1
CLK1 and CLK2 are electrically identical; each can be used as either a differential or a single-ended input.
2
With a 50 Ω termination, this is 12.5 dBm.
3
With a 50 Ω termination, this is +10 dBm.
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