U3600BM-NFN datasheet(8/43 Pages) ATMEL

Part #	U3600BM-NFN

Description	SINGLE CHIP CORDLESS TELEPHONE IC

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Manufacturer	ATMEL [ATMEL Corporation]

Direct Link	http://www.atmel.com

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8

U3600BM

4516C–CT0–08/02

Figure 6. Serial Bus Timing Diagram

Content of Internal

Registers

The registers have the following structure

R0: Reference for D/A converter

MUXDA:

D/A multiplexing VBAT / RSSI

DA(0:6):

Reference voltage D/A

R1: Gain of earpeace amplifier and demodulator

GEA[0:4]:

Gain of earpeace amplifier; “0” is LSB, “4” is MSB

GDEM:

Demodulator gain (1 = low gain)

R2: Switches and mutes for receive and data reception

DATRX:

Switch data comparator output to “DACO”-pin

BEXP:

Bypass expander

EEA:

Enable earpiece amplifier

ERXO:

Enable RXO output driver

ERX1:

Enable RX low frequency part 1

ERXHF:

Enable Mixer2 and IF-amplifier

MRX:

Mute RX low frequency path (expander) keeping circuit enabled

ERX2:

Enable RX low frequency part 2 (expander)

R3: Switches and mutes for transmit and power managemant

PDVDD:

Enable pull-down transistor in power-down mode

RBAT:

Battery detection high/low range

MTX:

Mute TX low frequency path (compressor) keeping circuit enabled

ETX:

Enable TX low frequency part

A1

A2

A3

Data

(D)

Clock

(C)

D0

tsud

thd

tch

tcl

teon

teh

teoff

D7

D6

D5

D4

D3

D2

D1

D0

MUXDA

DA6

DA5

DA4

DA3

DA2

DA1

DA0

GEA4

GEA3

GEA2

GEA1

GEA0

GDEM

free

DATRX

BEXP

EEA

ERXO

ERX1

ERXHF

MRX

ERX2

PDVDD

RBAT

free

MTX

ETX

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U3600BM-NFN Datasheet(PDF) 8 Page - ATMEL Corporation

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