ADF4108BCPZ Analog Devices Inc, ADF4108BCPZ Datasheet - Page 4

• Manufacturer Part Number: ADF4108BCPZ
• Description: IC PLL FREQUENCY SYNTH 20-LFCSP
• Manufacturer: Analog Devices Inc
• Type: Clock/Frequency Synthesizer (RF)r

Specifications of ADF4108BCPZ

• Pll: Yes
• Input: CMOS
• Output: Clock
• Number Of Circuits: 1
• Ratio - Input:output: 2:1
• Differential - Input:output: Yes/No
• Frequency - Max: 8GHz
• Divider/multiplier: No/No
• Voltage - Supply: 3.2 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 20-LFCSP
• Frequency-max: 8GHz
• Pll Type: Frequency Synthesis
• Frequency: 8GHz
• Supply Current: 15mA
• Supply Voltage Range: 3.2V To 3.6V
• Digital Ic Case Style: LFCSP
• No. Of Pins: 20
• Operating Temperature Range: -40°C To +85°C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: EVAL-ADF4108EBZ1 - BOARD EVAL FOR ADF4108
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

ADF4108
Parameter
NOISE CHARACTERISTICS
1
2
3
4
5
6
7
8
9
10
11
Operating temperature range (B version) is −40°C to +85°C.
The B chip specifications are given as typical values.
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.
AV
AC coupling ensures AV
Guaranteed by design. Sample tested to ensure compliance.
T
T
This value can be used to calculate phase noise for any application. Use the formula −219 + 10 log(f
seen at the VCO output. The value given is the lowest noise mode.
synthesizer (f
The phase noise is measured with the EVAL-ADF4108EB1Z evaluation board, with the ZComm CRO8000Z VCO. The spectrum analyzer provides the REF
f
A
A
REFIN
Normalized Phase Noise Floor
Phase Noise Performance
Spurious Signals
= 25°C; AV
= 25°C; AV
DD
7900 MHz Output
7900 MHz Output
= DV
= 10 MHz; f
DD
= 3.3 V.
DD
DD
REFOUT
= DV
= DV
PFD
= 10 MHz @ 0 dBm).
= 1 MHz; f
DD
DD
= 3.3 V; P = 32; RF
= 3.3 V; R = 16,383; A = 63; B = 891; P = 32; RF
DD
/2 bias.
11
11
RF
= 7900 MHz; N = 7900; loop B/W = 30 kHz, VCO = ZComm CRO8000Z.
10
9
IN
= 8 GHz, f
B Version
−219
−81
−82
PFD
= 200 kHz, REF
1
B Chips
(Typ)
−219
−81
−82
IN
IN
= 7.0 GHz.
= 10 MHz.
Rev. A | Page 4 of 20
2
Unit
dBc/Hz typ
dBc/Hz typ
dBc typ
PFD
Test Conditions/Comments
@ VCO output
@ 1 kHz offset and 1 MHz PFD frequency
@ 1 MHz offset and 1 MHz PFD frequency
) + 20 logN to calculate in-band phase noise performance as
IN
for the