S1T8528 查看數據表（PDF） - Samsung

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S1T8528

ENHANCED-1 CHIP CT0 RF IC

Samsung 

S1T8528

BLOCK DIAGRAM

ENHANCED-1 CHIP CT0 RF IC

36

35

34 33 32 31 30 29 28 27

26 25

2LOI 37

X-tal

OSC

IF AMP

(455KHz)

Limiting

IF AMP

AMP

FSK

COMP

Regulator

(Vcc/2)

1MO 38

1LOI 39

1LOI 40

VCO 41

RX

1MI 42

1MI 43

GND 44

(PLL)

PDR 45

VREF 46

(RF)

VREF 47

(PLL)

TIF 48

Quadrature

2nd

Detector

MIX

RX

VCO

Internal

cap.

1st

MIX

RSSI

IF AMP

(10.7MHz)

Carrier

Detector

VCC(RX)

Low

Battery

Detector

PLL Regulator

( 2.05 V )

Programmable Counter ( RX )

Programmable Counter ( TX )

Buffer

PRE AMP VREF

+

-

Rectifier

SUM

Gain Cell

AMP

Volume control

Limiter

SPK

AMP1

SUM

AMP

Gain Cell

SPK

AMP2

-

+

MIC

AMP VREF

ALC

Programmable Counter ( REF )

Rectifier

4_25 CNT

RX Phase TX Phase

Detector Detector

Splatter

Filter

fMCU

CONTROL

Compander

mute

24 VREF

(COMP)

23 ALC

22 EPI

21 ERC

20 EO

19 SAI

18 SAO1

17 SAO2

16 VCC

(COMP)

15 GND

(COMP)

14 CPI

13 CPO

123456

7 8 9 10

11

12

2

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