WS2111-TR1 Avago Technologies US Inc., WS2111-TR1 Datasheet - Page 11

• Manufacturer Part Number: WS2111-TR1
• Description: MODULE PA UMTS850 4X4MM 10-PIN
• Manufacturer: Avago Technologies US Inc.
• Type: Power Amplifierr

Specifications of WS2111-TR1

• Package / Case: 10-DFN
• Current - Supply: 475mA
• Frequency: 824MHz ~ 849MHz
• Gain: 25dB ~ 28dB
• Rf Type: W-CDMA, HSPDA
• Voltage - Supply: 3.2V ~ 4.2V
• Operating Frequency: 849 MHz
• Operating Supply Voltage: 4.2 V
• Supply Current: 475 mA
• Maximum Operating Temperature: + 90 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 20 C
• Number Of Channels: 1 Channel
• Frequency (max): 849MHz
• Output Power: 28dBm
• Power Supply Requirement: Dual
• Single Supply Voltage (min): Not RequiredV
• Single Supply Voltage (typ): Not RequiredV
• Single Supply Voltage (max): Not RequiredV
• Package Type: SMD
• Dual Supply Voltage (min): 3.2/3.2V
• Dual Supply Voltage (typ): 3.4V
• Dual Supply Voltage (max): 4.2V
• Operating Temperature Classification: Commercial
• Operating Temp Range: -20C to 90C
• Pin Count: 10
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Noise Figure: -
• P1db: -
• Test Frequency: -
• Lead Free Status / Rohs Status: Compliant

11
Peripheral Circuit in Handset
Figure 21. Peripheral Circuit.
Notes:
1. Recommended voltage for Vref is 2.85V.
2. Place C1 near to Vref pin.
3. Place C3 and C4 close to pin 5 (Vcc1) and pin 6 (Vcc2). These capacitors can affect the RF performance.
4. Use 50Ω transmission line between PAM and Duplexer and make it as short as possible to reduce conduction loss.
5. π-type circuit topology is good to use for matching circuit between PA and Duplexer,.
6. Pull-up resistor (R1) should be used to limit current drain. 6.2 kohm is recommended for WS2111.
MSM
RF In
PA_ON
PA_R0
Vdd
RF SAW
R1
C2
+2.85V
C1
C3
GND
IN
Vcont
Vcc1
Vref
WS2111
C8
V
GND
Vcc2
GND
OUT
GND
BATT
C5
C4
Output Matching Circuit
C7
C6
L1
Duplexer
RF Out