Instruction Manual

ManualsBrandsRainbow Electronics ManualsWireless HeadsetsT5761

1

2

3

4

5

6

7

8

9

2

T5760/T5761

4561B–RKE–10/02

Figure 2. Block Diagram

SENS

CDEM

AVCC

AGND

DGND

LNAGND

LNA_IN

DATA

POLLING/_ON

DATA_CLK

DVCC

XTAL

Polling circuit

and

control logic

Rssi Limiter out

Poly-LPF

fg = 7 MHz

LC-VCO

f

:256

XTO

Standby logic

FE CLK

FSK/ASK-

demodulator

and data filter

RSSI IF

Amp.

LNA

4. Order

f0 = 950 kHz/

Dem_out

Sensitivity-

reduction

LPF

fg = 2.2 MHz

IF

Amp.

IC_ACTIVE

Data -

interface

LNAREF

f

:2

Loop-

filter

1 MHz