Skyworks SKY77762-11 Schematic [ru]

DATA SHEET

SKY77762 Power Amplifier Module for CDMA/ WCDMA/ HSDPA/ HSUPA/ HSPA+/ LTE – Band II (1850–1910 MHz)

Applications

• WCDMA handsets

• HSDPA

• HSUPA

• HSPA+

• LTE

- Band 25

(1850 MHz–1915 MHz)

- Band 39

(1850 MHz–1920 MHz)

• CDMA2000

• EVDO

Features

• Low voltage positive bias

supply 3.0 V to 4.5 V

• Good linearity

• High efficiency

- 46% at 28.6 dBm

• Large dynamic range

• Small, low profile package

- 3 mm x 3 mm x 0.9 mm

- 10-pad configuration

• Power down control

• InGaP

• Supports low collector

voltage operation

• Digital Enable

• No V

REF required

• CMOS compatible control

signals

• Integrated Directional

Coupler

Description

The SKY77762 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 1850-1910 MHz bandwidth coverage into a single compact package. Because of high efficiencies attained throughout the entire power range, the SKY77762 delivers unsurpassed talk-time advantages. The SKY77762 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. An integrated directional coupler eliminates the need for any external coupler.

The Gallium Arsenide (GaAs) Microwave Monolithic Integrated Circuit (MMIC) contains all amplifier active circuitry, including input and interstage matching circuits. The silicon CMOS support die, providing precision biasing for the MMIC affords a true CMOS-compatible control interface. Output match into a 50-ohm load, realized off-chip within the module package, optimizes efficiency and power performance.

The SKY77762 is manufactured with Skyworks' InGaP GaAs Heterojunction Bipolar Transistor (HBT) process which provides for all positive voltage DC supply operation and maintains high efficiency and good linearity. While primary bias to the SKY77762 can be supplied directly from any suitable battery with an output of 3.2 V to 4.2 V, optimal performance is obtained with VCC2 sourced from a DC-DC power supply adjusted within 0.5 V to 3.6 V based on target output power levels. Power down executes by setting VENABLE to zero volts. No external supply side switch is needed as typical "off" leakage is a few microamperes with full primary voltage supplied from the battery.

Figure 1. SKY77762 Functional Block Diagram

Electrical Specifications

RF Input Power

— 0 10

dBm

Supply Voltage

No RF

—

3.4

6.0

Volts

With RF — —

4.6

Enable Control Voltage

VEN

—

1.8

4.2

Volts

— 1.8

4.2

— 1.8

4.2

Case Temperature1

Operating

–30

+110

°C

Storage

–40 — +150

Case Operating Temperature (TCASE) refers to the temperature of the GROUND PAD at the underside of the package.

WCDMA

28.60 — —

HSDPA 27.60 — —

HSUPA 25.00 — —

LTE 27.60 — —

CDMA2000 28.25 — —

Operating Frequency

ƒO

1850

1880

1910

MHz

Supply Voltage2

3.0

3.4

4.5

Volts

VCC2

0.5 — 3.6

Low

VEN_L

0.00

0.50

High

1.35

1.80

3.10

Mode Control Voltage

Low

0.0

0.5

Volts

0.0

0.5

High

1.35

1.8

3.1

VMODE1

1.35

1.8

3.1

Case Operating Temperature3

–20

+25

+85

°C

Equivalent to –30 °C to +75 °C Ambient Operating Temperature.

The following tables list the electrical characteristics of the SKY77762 Power Amplifier. Table 1 lists the absolute maximum ratings and Table 2 shows the recommended operating conditions. Electrical specifications for nominal operating

Table 1. Absolute Maximum Operating Conditions

No damage assuming only one parameter set at limit at a time with all other parameters set at nominal value.

Parameter Symbol Minimum Nominal Maximum Unit

CC1

VCC2

conditions are listed in Table 4. Table 3 presents a truth table for the power settings. Tables 5 through 8 provide the standard test configurations for WCDMA (STC1), HSDPA (STC2), and HSUPA (STC3, STC4) respectively.

Mode Control Voltage

RF Output Power1

Enable Control Voltage

MODE0

MODE1

CASE

STG

Volts

Table 2. Recommended Operating Conditions

Parameter Symbol Minimum Nominal Maximum Unit

OUT_MAX

CC1

EN_H

MODE0

MODE1

MODE0

dBm

Volts

CASE

For VCC < 3.4 V, output power back-off = 0.5 dB.

Specifications in Table 4 are specified at VCC1 = 3.2 V to 4.2 V.

Table 3. Modes of Operation

Power Down Mode

Low

Standby Mode

Low — —

High Power Mode (17.0 dBm ≤ P

≤ 28.6 dBm)

High

Low — On

Medium Power Mode (7.0 dBm ≤ POUT ≤ 17.0 dBm)

High

Low

Low Power Mode (P

≤ 7.0 dBm)

High

VCC2 = 0.8 V

VCC2 = 1.5 V

GHIGH

POUT = 28.6 dBm

25.0

28.6

32.0

Rx Band Gain

RxG

= 28.6 dBm

— — –1

RxG

= 28.6 dBm

— — –2

RxG

= 28.6 dBm

— — –7

Power Added Efficiency

PAE

= 7.0 dBm, V

= 0.8 V

—

PAE

= 17.0 dBm, V

= 1.5 V

—

PAE

= 28.6 dBm

—

= 7.0 dBm, V

= 0.8 V

—

ICC_MED

POUT = 17.0 dBm, VCC2 = 1.5 V

—

126

150

ICC_HIGH

POUT = 28.6 dBm

—

458

500

IQ_LOW

Low Power Mode

—

Enable Control Current

IEN — —

µA

Mode Control Current

— —

µA

— —

Total Supply Current in Power Down Mode

IPD

VCC = 4.5 V

= Low

— 1 10

µA

ICC1 Current

— — — 10

= 7.0 dBm

—

–43

–39

dBc

POUT = 17.0 dBm

—

–45

–39

POUT = 28.6 dBm

—

–41

–39

POUT = 7.0 dBm

—

–67

–51

= 28.6

—

–55

–51

Power Setting ENABLE VMODE0 VMODE1 VCC

OUT

Table 4. Electrical Specifications for Nominal Operating Conditions (1 of 2)

Per Table 2 over dynamic range up to 28.6 dBm output power for STC1 modulation, unless otherwise specified.

Characteristics Symbol Condition Minimum Typical Maximum Unit

Gain1 GLOW POUT = 7.0 dBm

12.0

16.5 19.0 dB

GMED POUT = 17.0 dBm

_GPS

_ISM

LOW

MED

HIGH

Total Supply Current

CC_LOW

Quiescent Current

IQ_MED Medium Power Mode — 35 45

MODE0

MODE1

CC1_HIGH

Adjacent Channel Leakage power Ratio2 5 MHz offset ACLR5

OUT

VEN = Low

MODE0 = Low

MODE1

OUT

CC2

20.0 24.5 28.0

CC2

10 MHz offset ACLR10

POUT = 17.0 dBm — –63 –51

OUT

Table 4. [continued] Electrical Specifications for Nominal Operating Conditions (2 of 2)

Adjacent Channel Leakage power Ratio3

EUTRA offset

ACLR

≤ (P

– MPR4)

—

–40 — dBc

UTRA offset

ACLR1

— –42 —

ACLR2

— — —

Adjacent Channel Leakage power Ratio3

EUTRA offset

ACLR_EUTRA

POUT ≤ (POUT_MAX – MPR4)

—

–36.5 — dBc

Band 25 (1850–1915 MHz)

UTRA offset

ACLR1_UTRA

— –41.0 — ACLR2

— –43.0 —

Band 39 (1850-1920 MHz)

UTRA offset

ACLR1

— –41 —

ACLR2

— –43 —

5,6

1.25 MHz offset

ACPR1

= 28.25 dBm

—

–48 — dBc

1.98 MHz offset

ACPR2 —

–55 —

Second

f02

—

–53

–35

Third

f03 — –50

–43

Tx Noise in Rx Bands

Rx Band II

1930 MHz–1990 MHz

— — –135.0

dBm/Hz

GPS Rx

1574 MHz–1577 MHz

— — –137.0

ISM Rx

2400 MHz–2483.5 MHz

— — –144.5

EVM

EVM1

= P

— — 3.75

EVM2

= P

– 3

— — 3.25

TON

— — — 20

TOFF

— — — 20

TON

— — — 6

TOFF_RF — — — 6

Coupling Factor

CPL

POUT = POUT_MAX

–22

–20

–18

CPL_IN 50 Ω terminated

Daisy-chain

VSWR CPL

and CPL

ports

VEN = Low

— — 1.6:1

Insertion Loss

— — 0.25

Input Voltage Standing Wave Ratio

VSWR — —

1.6:1

1.85:1

—

Stability (Spurious output)1

6:1 VSWR All phases

— — –70

dBc

Ruggedness – no damage

1,7

POUT ≤ 28.6 dBm

10:1 — —

VSWR

Per Table 2 over dynamic range up to 28.6 dBm output power for STC1 modulation, unless otherwise specified.

Characteristics Symbol Condition Minimum Typical Maximum Unit

_EUTRA

_UTRA

EUTRA offset ACLR_EUTRA POUT ≤ (POUT_MAX – MPR4) — –37 — dBc

_UTRA

Adjacent Channel Power Ratio

OUT

OUT_MAX

Harmonic Suppression

POUT ≤ 28.6 dBm

POUT = 28.6 dBm

OUT

OUT_MAX

OUT

OUT_MAX

Rise / Fall Time DC

_DC

_RF

CPL_OUT / POUT Power Ratio Variation Over Output VSWR 2.5:1 VSWR at POUT

all VSWR phases

_IN

_OUT

698 MHz to 2620 MHz

dBc

µs

— ±0.30 — dB

Over conditions

ACLR is expressed as a ratio of total adjacent power to WCDMA modulated in-band, both measured in 3.84 MHz bandwidth at specified offsets.

LTE: ACLR is measured with QPSK modulation with 20 MHz bandwidth and 18 resource blocks. (Maximum Power Reduction = 0 dBm per 3GPP TS36.101.

MPR is the maximum power reduction as defined in 3GPP TS36.101

ACPR is specified per IS95 as the ratio of the total in-band power (1.23 MHz BW) to adjacent power in a 30 kHz BW.

For CDMA2000 test configured as [PCD @ –7.40 dB, DCCH–9600 bps @ –15.35 dB; SCHO–9600 bps @ –15.63 dB] and other test configurations that yield a peak-to-average up to 4.02 dB

for CCDF = 1%, up to 1 dB power back off from the maximum listed for IS95 may be required to meet specified maximum ACP performance under worst-case conditions.

All phases, time = 10 seconds.

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Skyworks SKY77762-11 Schematic [ru]

Specifications and Main Features

Frequently Asked Questions

User Manual

Applications

Features

Description

Electrical Specifications

Table 1. Absolute Maximum Operating Conditions

No damage assuming only one parameter set at limit at a time with all other parameters set at nominal value.

Table 2. Recommended Operating Conditions

Table 3. Modes of Operation

Table 4. Electrical Specifications for Nominal Operating Conditions (1 of 2)

Per Table 2 over dynamic range up to 28.6 dBm output power for STC1 modulation, unless otherwise specified.

Table 4. [continued] Electrical Specifications for Nominal Operating Conditions (2 of 2)

Per Table 2 over dynamic range up to 28.6 dBm output power for STC1 modulation, unless otherwise specified.