Siemens CF110 Diagrams

CF110 - RF Diagram

internal

antenna

antenna

matching

external
antenna

mechanical

antenna

switch

869-894 MHz

925-960 MHz

frontend

GSM 850 LNA

GSM 900 LNA

GSM 1800 LNA

1

2

IQ demodulator

1

2

BATT+

DC autocalibration

1/2

VDD_RF1

VDD_RF2

FEM incl.

SAW &

PIN-diode

switch and

matching

PA_RAMP

TXONPA

RF_FE_DCR_GSM

RF_FE_DCR_DCS

AFC_PNM

PA

Varicap

Hitachi

Internal power

control using

"current sensing"

1805 - 1880 MHz

1930 - 1990 MHz

integr . RF VCO

Crystal
26MHz

to Baseband

to Bluetooth

3rd output

GSM 1900 LNA

3476 - 3980

MHz

VCXO

26 MHz

RF PLL

IQ demodulator

CP

+

26MHz

PFD

1/2

D

1

R

1

1/2

PCN GSM

Digital Phase -

Feedback filter

integr. IF VCO
640 - 656 MHz

Analogue /

frequency

detector

IQ modulator

machine

Interface

PFD

CP

+

State

Serial

D

R

BANDSW

PA_RAMP

RF_FE_DCR_GSM

RF_FE_DCR_DCS

TXONPA

RFCLK
RFSTR
RFDATA

1/4

1

1

26_MHz_BB

26_MHz_BT

TVCXO

AFC_PNM

RF_I
RF_IX

Basebend

BATT+

Vapc

1800/1900

850/900

1/2

1/2

Integrated 4 GHz

TX-VCO

+

charge

pump

PD

phase

detector

Transceiver IC

Bright 6 E

1

2

RF_Q
RF_QX

base bandradio part