Preliminary Specifications

2.4-2.5 GHz / 4.9-5.8 GHz Dual-Band Power Amplifier

SST13LP02

©2006 SST Communications Corp.

S71304-01-000

9/06

22

TABLE

6: Part List

Symbol

Value

Note

C1

10pF

Larger value can be used if meeting on/off toggling speed requirement of low ban on system

board

C2

1.8pF

LB input matching

C3

0.5 pF

HB input matching, no-pop if -6dB input return loss is acceptable

C4

10pF

Larger value can be used if meeting on/off toggling speed requirement for high band on

system board

C5

0.1uF

LB bypassing

C6

0.1uF

HB bypassing

C7

0.1uF

HB bypassing

C8

10pF

LB power detector bypassing/video bandwidth control

C9

10pF

HB power detector bypassing/video bandwidth control

C10

1.8pF

LB band output matching, 1.5~2.0 pF determined by length/impedance of T7, high Q part

preferred

C11

0.8pF

HB output matching, high Q cap preferred

C12

0.1uF

LB bypassing, position close to L2

C13

0.1uF

HB bypassing, position close to L3

C14

47pF

LB output DC blocking

C15

0.3pF

HB output matching, high Q cap preferred

C16

1pF

HB output matching / DC blocking

L1

1.5nH

LB input matching, can be replaced by an 240mil 50

Ω microstrip

L2

8.2nH

LB output RF chock, coil type preferred

L3

8.2nH

HB output RF chock, coil type preferred

R1

249

Ω

Needs adjusting for different Vreg_LB

R2

221

Ω

Needs adjusting for different Vreg_HB or 4.9~5.9GHz simultaneous coverage with lower EVM

T1,T2,T9

50

Ω

Length not critical

T3

50

Ω

HB input matching, 50<length<70mil

T4

55~75

Ω

Impedance not critical, recommended length=50mil (<130mil should be fine)

T5

55~75

Ω

Impedance not critical, length=50mil

± 10mil

T6

55~75

Ω

Impedance not critical, length=50mil

± 10mil

T7

50

Ω

Recommend length =60mil with C10=1.8pF (40<length <120mil OK with C10=1.5~2.0pF)

T8

50

Ω

Critical for HB output matching, length=30mil

± 5mil

T10

50

Ω

Critical for HB output matching length=45mil

± 5mil

T11

50

Ω

Critical for output matching, length=25mil

± 5mil

T12

50

Ω

Length = 40mil±5mil

T6.1 1304