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DA6180.001

27 December, 2006

TYPICAL APPLICATION (Continued)

Receiver

Output

C

AGC

10 µ

µ

µ

µ

F

C

DEC

47 nF

Note 3

Power Down /

Fast Startup

Control

Note 1

Note 4

Optional

Control

for AGC on/hold

Ferrite

Antenna

Antenna

Frequency

Selection

MAS6180A5

Note 5

AGC

DEC

+

C

AGC

10 µ

µ

µ

µ

F

C

DEC

47 nF

Note 2

OR

1.4 V

Note 2

VDD

VDD

VDD

VDD

GND

AGC Amplifier

Power Supply/Biasing

Demodulator

&

Comparator

RFIP

RFIM

VDD

VSS

PDN

AGC

DEC

OUT

QOP

QI

QOM

AON

VDD

VDD

Figure 3. Dual band application circuit of external compensation capacitance option version MAS6180A5. PMOS

switch transistor is used since RFIM input is biased close to VDD voltage.