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3. TECHNICAL BRIEF
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[Figure 1.8] SKY77544 Functional Block Diagram.
3.5.3 W-CDMA 2100 POWER AMPLIFIER (U102: SKY77701)
The SKY77701 Power Amplifier Module (PAM) is a fully matched 10-pad surface mount module developed for
Wideband Code Division Multiple Access (WCDMA) applications. This small and efficient module packs full
1920–1980 MHz bandwidth coverage into a single compact package. Because of high efficiencies attained
throughout the entire power range, the SKY77701 delivers unsurpassed talk-time advantages. The SKY77701
meets the stringent spectral linearity requirements of High Speed Downlink Packet Access (HSDPA), High
Speed Uplink Packet Access (HSUPA), and Long Term Evolution (LTE) data transmission with high power
added efficiency. A directional coupler is integrated into the module thus eliminating the need for any
external coupler
SKY77701 Functional Block Diagram.
MODULE
MMIC
Power Stage
Bias
Driver Stage
Bias
Input Match
DA
PA
Inter-Stage
Match
Output
Match
VEN (5)
VMODE (4)
VMODE_1 (3)
VCC2 (10)
VCC1 (1)
RF_IN (2)
GND (7)
CPL_OUT (6)
CPL_IN (8)
(9) RF_OUT