SKY72302-21 Skyworks Solutions Inc, SKY72302-21 Datasheet - Page 15

• Manufacturer Part Number: SKY72302-21
• Description: IC SYNTHESIZER 6.1GHZ 28-EPTSSOP
• Manufacturer: Skyworks Solutions Inc
• Type: Fractional N Synthesizerr

Specifications of SKY72302-21

• Pll: Yes
• Input: Clock, Crystal
• Output: Clock, Crystal
• Number Of Circuits: 1
• Ratio - Input:output: 2:2
• Differential - Input:output: Yes/Yes
• Frequency - Max: 6.1GHz
• 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: 6.1GHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 863-1079-2

tape and reel format. For packaging details, refer to the Skyworks
Application Note, Tape and Reel, document number 101568.
Electrical and Mechanical Specifications
The SKY72302-21 is supplied as a 28-pin EP-TSSOP. The
exposed pad is located on the bottom side of the package and
must be connected to ground for proper operation. The exposed
pad should be soldered directly to the circuit board.
Signal pin assignments and functional pin descriptions are
specified in Table 5. The absolute maximum ratings of the
Table 5. SKY72302-21 Signal Descriptions (1 of 2)
Pin #
10
11
12
13
14
15
16
17
18
19
1
2
3
4
5
6
7
8
9
Clock
Mod_in
Mux_out
VSUBdigital
GNDecl/cml (Note 1)
VCCcml_main
(Note 1)
Fvco_main
Fvco_main
LD/PSmain
VCCcp_main
(Note 1)
CPout_main
GNDcp_main
(Note 1)
Xtalacgnd/OSC
Xtalin/OSC
Xtalout/NC
VCCxtal
GNDxtal
LD/PSaux
VCCcp_aux (Note 1)
Pin Name
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [e-mail] • www.skyworksinc.com
101216L • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • September 9, 2009
Digital input
Digital input
Digital output
Power and ground
Power and ground
Input
Input
Analog output
Power and ground
Analog output
Power and ground
Ground/input
Input
Input
Power and ground
Power and ground
Analog output
Power and ground
Type
–
Clock signal pin. When CS is low, the register address and data are shifted in address bits first on the
Data pin on the rising edge of Clock.
Alternate serial modulation data input pin. Address bits are followed by data bits.
Internal multiplexer output. Selects from oscillator frequency, main or auxiliary reference frequency, main
or auxiliary divided VCO frequency, serial data out, or testability signals. This pin can be tri-stated from
the general synthesizer registers.
Substrate isolation. Connect to ground.
Emitter Coupled Logic (ECL)/Current Mode Logic (CML) ground.
ECL/CML, 3 V. Removing power safely powers down the associated divider chain and charge pump.
Main VCO differential input.
Main VCO complimentary differential input.
Programmable output pin. Indicates main phase detector out-of-lock as an active low pulsing open
collector output (high impedance when lock is detected), or helps the loop filter steer the main VCO. This
pin is configured using the Phase Detector/Charge Pump Control Register.
Main charge pump supply, 3 to 5 V. Removing power safely powers down the associated divider chain
and charge pump.
Main charge pump output. The gain of the main charge pump phase detector is controlled by the Phase
Detector/Charge Pump Control Register.
Main charge pump ground.
Reference crystal AC ground or external oscillator differential input.
Reference crystal input or external oscillator differential input.
Reference crystal output or no connect.
Crystal oscillator ECL/CML, 3 V.
Crystal oscillator ground.
Programmable output pin. Indicates auxiliary phase detector out-of-lock as an active low pulsing open
collector output (high impedance when lock is detected), or helps the loop filter steer the auxiliary VCO.
This pin is configured using the Phase Detector/Charge Pump Control Register.
Auxiliary charge pump supply, 3 to 5 V. Removing power safely powers down the associated divider chain
and charge pump.
SKY72302-21 are provided in Table 6. The recommended
operating conditions are specified in Table 7 and electrical
specifications are provided in Table 8.
Figure 16 provides a schematic diagram for the SKY72302-21.
Figure 17 shows the package dimensions for the 28-pin
EP-TSSOP and Figure 18 provides the tape and reel dimensions.
DATA SHEET • SKY72302-21 FREQUENCY SYNTHESIZER
Description
15