SKY72300-21 Skyworks Solutions Inc, SKY72300-21 Datasheet - Page 11

• 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

Table 2. Programming the Main Reference Frequency Divider
Table 3. Programming the Auxiliary Reference Frequency Divider
Decimal
Decimal
—
—
—
31
—
—
—
31
0
1
2
0
1
2
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [e-mail] • www.skyworksinc.com
101217N • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • September 11, 2009
A3
A3
0
0
A2
A2
0
1
Bit 4 (MSB)
Bit 9 (MSB)
A1
A1
1
0
—
—
—
—
—
—
0
0
0
1
0
0
0
1
A0
1
A0
0
11
11
X
X
10
X
10
X MSB
Figure 10. Auxiliary Dividend Register (Write Only)
Figure 9. Auxiliary Divider Register (Write Only)
9
X
9
Bit 3
Bit 8
—
—
—
—
—
—
0
0
0
1
0
0
0
1
MSB
8
8
7
7
6
6
5
5
Bit 2
Bit 7
—
—
—
—
—
—
0
0
0
1
0
0
0
1
4
4
3
3
2
2
1
DATA SHEET • SKY72300-21 FREQUENCY SYNTHESIZER
1
LSB
Bit 1
Bit 6
0
—
—
—
—
—
—
LSB
0
0
1
1
0
0
1
1
0
Auxiliary Synthesizer Divider Index
Auxiliary Synthesizer Dividend
Bit 0 (LSB)
Bit 5 (LSB)
—
—
—
—
—
—
0
1
0
1
0
1
0
1
C1421
C1420
Reference Divider
Reference Divider
Ratio
Ratio
—
—
—
32
—
—
—
32
1
2
3
1
2
3
11