SKY74038 Datasheet, PDF (8/12 Pages) Skyworks Solutions Inc. – 2.6 GHz/800 MHz Dual Fractional-N/lnteger-N Frequency Synthesizer

DATA SHEET • SKY74038 FREQUENCY SYNTHESIZER
Table 4. Electrical Characteristics
(VDD = 2.7 V, TA = 25 °C, unless otherwise noted)
Parameter
Symbol
Test Conditions
Minimum
Typical
Supply voltage
RF/IF
2.6
2.7
Supply current
RF @2.5 GHz
6.5
IF
1.9
RF/IF @2.5 GHz-RF
8.2
Standby
Operating input frequency
RF (PS = 1)
0.1
RF (PS = 0)
0.1
IF
1
(@ –40 °C to +85 °C)
Reference input frequency
Phase detector frequency
RF (PS = 1)
RF (PS = 0)
IF
(@ –40 °C to +85 °C)
Prescaler input sensitivity
RF
–15
IF
–15
(@ –40 °C to +85 °C)
Prescaler input impedance
RF @ 2.5 GHz
IF @ 480 MHz
30 – j25
200 – j190
Reference oscillator sensitivity
0.3
In-band phase noise @ 10 kHz offset
RF @ 2.5 GHz
–85
(Note 1)
IF @ 480 MHz
–82
(@ –40 °C to +85 °C)
Charge pump output current
RF, VCP = VDD/2
–15%
120
–15%
240
–15%
360
–15%
480
IF, VCP = VDD/2
–15%
0.4
–15%
0.8
–15%
1.2
–15%
1.6
Charge pump leakage current
0.5 < VCP < VDD – 0.5
0.2
0.3 < VCP < VDD – 0.3
0.5
Charge pump sink vs. source mismatch
VCP = VDD/2
–10
Charge pump current vs.
voltage/temperature
0.5 < VCP < VDD – 0.5
–5
0.3 < VCP < VDD – 0.3
–10
High level digital I/O voltage
0.7 VDD
Low level digital I/O voltage
Serial clock high time
tCKH
20
Serial clock low time
tCKL
20
Data set-up time to clock rising-edge
tDSU
5
Data hold time to clock rising-edge
tDHD
5
LE pulse width
tLEW
20
Clock falling-edge to LE rising edge
tCLE
5
LE falling-edge to clock rising-edge
tLEC
5
Note 1: For RF output frequency = 2.5 GHz, the comparison frequency = 8 MHz, loop bandwidth = 35 kHz, and charge pump current = 480 mA.
For IF output frequency = 480 MHz, the comparison frequency = 200 kHz, loop bandwidth = 10 kHz, and charge pump current = 1.6 mA.
Maximum
3.6
10
2.6
1.4
800
50
9
15
2
+6
+6
VDD
+15%
+15%
+15%
+15%
+15%
+15%
+15%
+15%
+10
+8
+20
0.3 VDD
Units
V
mA
mA
mA
µA
GHz
GHz
MHz
MHz
MHz
MHz
MHz
dBm
dBm
Ω
Ω
Vp-p
dBc/Hz
dBc/Hz
µA
µA
µA
µA
mA
mA
mA
mA
nA
nA
%
%
%
V
V
ns
ns
ns
ns
ns
ns
ns
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [e-mail] • www.skyworksinc.com
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June 4, 2007 • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • 101075M