MACOM AM55-0027-TB, AM55-0027, AM55-0027TR Datasheet

UMTS Digital Gain Control
Amplifier, 1.94 - 2.34 GHz

V 1E.00

Advanced

AM55-0027

Features

n Digitally Controlled Gain Block
n Parallel Control Interface
n 4mm FQFP-N Package
n Single Positive Supply Voltage
n 0.25 dB Steps of Attenuation
n 10 dB Atttenuation Range

Description

M/A-COM’s AM55-0027 is a digitally controlled Variable
Gain Amplifier. Attenuation range is 10 dB with
Attenuation Steps of 0.25 dB. Attenuation is controlled
digitally through a parallel interface.

4mm FQFP-N Package Style

Block Diagram

10 dB

IN

8 dB
Gain

Range
in

0.25 dB
Steps

Parallel
Control

Interface

8 dB
Gain

9 dB
Gain

OUT

Electrical Specifications: TA = 25°C, Z0 = 50Ω, VS = 5V

Parameter Conditions Frequency Units Min. Typ. Max.

Gain No Attenuation 1.94 - 2.34 GHz dB 24 26 —

Attenuation Range — 1.94 - 2.34 GHz dB 10 10 —

Attenuation Step Size — 1.94 - 2.34 GHz dB 0.2 0.25 0.3

Amplitude Flatness —

All attenuation states

Input Return Loss — 1.94 - 2.34 GHz dB 13 18 —

Output Return Loss — 1.94 - 2.34 GHz dB 10 14 —

Output P1 dB 0 dB attenuation 1.94 - 2.34 GHz dBm 15 19 —

Output IP3 0 dB attenuation 1.94 - 2.34 GHz dBm 30 31 —
Noise Figure 0 dB attenuation 1.94 - 2.34 GHz dB — 4.7 —
Noise Figure 10 dB attenuation 1.94 - 2.34 GHz dB — 9.0 —

Supply Current — — mA — 110 120

1.94 - 2.34 GHz

2.09 - 2.19 GHz

dB
dB

—
—

—
—

± 0.3
± 0.1

UMTS Digital Gain Control Amplifier, 1.94 - 2.34 GHz

AM55-0027

V 1E.00

Pin Out Table

Control Pin

5V 0V

Vcc6 0.25 dB

Vcc1 0.5 dB

Vcc2 1 dB

Vcc3 Vcc3N 2 dB

Vcc4 Vcc4N 4 dB

Vcc5 Vcc5N 8 dB

*All Vdd pins = 5V
Example: To get 7.5 dB Attenuation Vcc4 = 5V, Vcc4N = 0V,
Vcc3 = 5V, Vcc3N = 0V, Vcc2 = 5V and Vcc1 = 5V
Note: In this case Vcc5 = 0V therefore Vcc5N is 5V, and
Vcc6 = 0

Attenuation

State

Typical Performance Curves

27

25

23

21

S21 (dB)

19

17

Pin Out Figure

Pin #20

Pin #1

VCC1

VCC3N

VDD

VCC5N

VCC4N VCC4

VCC6 N/CVDD1 RF IN N/C

Input Return Loss vs. Frequency Gain vs. Frequency

-10

-15

-20

-25

S11 (dB)

-30

N/CRF OUTVDD3VDD2 N/C

N/C

VCC3

VCC5

VCC2

15

1.94 2.04 2.14 2.24 2.34

Frequency (GHz)

Output Return Loss vs. Frequency

-10

-12

-14

-16

-18

S22 (dB)

-20

-22

-24

1.94 2.04 2.14 2.24 2.34

Frequency (GHz)

Specifications subject to change without notice.

n North America: Tel. [phone]
n Asia/Pacific: Tel.[phone], Fax [phone]
n Europe: Tel. [phone], Fax[phone]

Visit www.macom.com for additional data sheets and product information.

-35

1.94 2.04 2.14 2.24 2.34

Frequency (GHz)

Ordering Information

Part Number Package

AM55-0027 Bulk Packaging

AM55-0027TR Tape and Reel (1K Reel)

AM55-0027-TB Units Mounted on Test Board

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