参数资料
型号: ADF4208BRUZ
厂商: Analog Devices Inc
文件页数: 19/24页
文件大小: 0K
描述: IC PLL FREQ SYNTHESIZER 20TSSOP
标准包装: 75
类型: 时钟/频率合成器,RF
PLL:
输入: CMOS,TTL
输出: 时钟
电路数: 1
比率 - 输入:输出: 3:1
差分 - 输入:输出: 是/无
频率 - 最大: 2GHz
除法器/乘法器: 无/无
电源电压: 2.7 V ~ 5.5 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 20-TSSOP(0.173",4.40mm 宽)
供应商设备封装: 20-TSSOP
包装: 管件
ADF4206/ADF4208
Rev. A | Page 4 of 24
Parameter
B Version1
Unit
Test Conditions/Comments
POWER SUPPLIES
VDD1
2.7/5.5
V min/V max
VDD2
VDD1
VP
VDD1/6.0
V min/V max
VDD1, VDD2 ≤ VP1, VP2 ≤ 6.0 V
IDD (IDD1 + IDD2)6
ADF4206
14
mA max
9.5 mA typical at VDD = 3 V, TA = 25°C
ADF4208
21
mA max
14 mA typical at VDD = 3 V, TA = 25°C
IDD1
ADF4206
8
mA max
5.5 mA typical at VDD = 3 V, TA = 25°C
ADF4208
14
mA max
9 mA typical at VDD = 3 V, TA = 25°C
IDD2
ADF4206
7.5
mA max
5 mA typical at VDD = 3 V, TA = 25°C
ADF4208
9
mA max
5.5 mA typical at VDD = 3 V, TA = 25°C
IP (IP1 + IP2)
1
mA max
TA = 25°C
Low Power Sleep Mode
0.5
μA typ
NOISE CHARACTERISTICS
Normalized Phase Noise Floor
(RF1)7
ADF4206
213
dBc/Hz typ
ADF4208
217
dBc/Hz typ
Phase Noise Performance8
@ VCO output
ADF4206 (RF1, RF2)
92
dBc/Hz typ
@ 540 MHz output, 200 kHz at PFD
ADF4208 (RF1)
85
dBc/Hz typ
@ 1750 MHz output, 200 kHz at PFD
ADF4208 (RF1)
91
dBc/Hz typ
@ 900 MHz output, 200 kHz at PFD
Spurious Signals
RF1, RF2 (20 kHz Loop B/W)
80/84
dB typ
@ 200 kHz/400 kHz offsets and
200 kHz PFD
1 Operating temperature range for B version: 40°C to +85°C.
2 The B chip specifications are given as typical values.
3 This is the maximum operating frequency of the CMOS counters. The prescaler value should be chosen to ensure that the RF input is divided down to a frequency that
is less than this value.
4 AC coupling ensures AVDD/2 bias. VDD1 = VDD2 = 3 V; For VDD1 = VDD2 = 5 V, use CMOS-compatible levels.
5 Guaranteed by design. Sample tested to ensure compliance.
6 Typical values apply for VDD = 3 V; P = 32; RF1IN1/RF2IN2 for ADF4206 = 540 MHz; RF1IN1/RF2IN2 for ADF4208 = 900 MHz.
7 The synthesizer phase noise floor is estimated by measuring the in-band phase noise at the output of the VCO and subtracting 20 log N (where N is the N divider
value) and 10 log FPFD. PNSYNTH = PNTOT 10 log FPFD 20 log N.
8 The phase noise is measured at 1 kHz, unless otherwise noted. The phase noise is measured with the EVAL-ADF4206EB or the EVAL-ADF4208EB evaluation board and
the HP8562E spectrum analyzer. The spectrum analyzer provides the REFIN for the synthesizer (fREFOUT = 10 MHz @ 0 dBm).
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