SKY72300-21 Skyworks Solutions Inc, SKY72300-21 Datasheet - Page 19

• Manufacturer Part Number: SKY72300-21
• Description: IC SYNTHESIZER 2.1GHZ 28-EPTSSOP
• Manufacturer: Skyworks Solutions Inc
• Type: Fractional N Synthesizerr

Specifications of SKY72300-21

• Pll: Yes
• Input: Clock, Crystal
• Output: Clock, Crystal
• Number Of Circuits: 1
• Ratio - Input:output: 2:2
• Differential - Input:output: Yes/Yes
• Frequency - Max: 2.1GHz
• Divider/multiplier: Yes/No
• Voltage - Supply: 2.7 V ~ 3.3 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 28-TSSOP Exposed Pad, 28-eTSSOP, 28-HTSSOP
• Frequency-max: 2.1GHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 863-1076-2

VCC
5
3
4
VCC
1
3
RF Out Main
Main VCO
2
J1
GND
1
2
Lock Detect
Main Output
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [e-mail] • www.skyworksinc.com
4
101217N • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • September 11, 2009
Main Synthesizer Loop Filter
C14
3 V
R4
<
C15
R1
100 kΩ
C17
1 nF
C3
R5
3 V
3 V
100 pF
C11
1 nF
C16
Figure 16. SKY72300-21 Application Schematic
C5
C7
C19
10
11
12
13
14
1
2
3
4
5
6
7
8
9
Clock
Mod_in
Mux_out
VSUBdigital
GNDecl/cml
VCCcml_main
Fvco_main
Fvco_main
LD/PSmain
VCCcp_main
CPout_main
GNDcp_main
Xtalacgnd/OSC
Xtalin/OSC
To Microprocessor
Y1
External Pad
Connection to
Ground
VCCcml_aux
GNDcp_aux
VCCcp_aux
GNDdigital
CPout_aux
Xtalout/NC
VCCdigital
Fvco_aux
Fvco_aux
LD/PSaux
GNDxtal
VCCxtal
Data
CS
28
27
26
25
24
23
22
21
20
19
18
17
16
15
DATA SHEET • SKY72300-21 FREQUENCY SYNTHESIZER
1 nF
C4
C6
C17
C18
3 V
3 V
3 V
C2
1 nF
100 kΩ
R6
1 nF
C10
3 V
>
3 V
Lock Detect
Auxiliary Output
1 nF
C1
Auxiliary Synthesizer Loop Filter
C8
Auxiliary
VCO
4
R3
C12
2
GND
RF Out Auxiliary
R2
1
A
J1
VCC
C1427
1
C9
VCC
3
19