S1T8528X0 SAMSUNG [Samsung semiconductor], S1T8528X0 Datasheet

S1T8528X0

Manufacturer Part Number

S1T8528X0

Description

ENHANCED-1 CHIP CT0 RF IC

Manufacturer

SAMSUNG [Samsung semiconductor]

Datasheet

1.S1T8528X0.pdf (35 pages)

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Company:

Bonase Electronics (HK) Co., Limited

Part Number:

S1T8528X01-Q0

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melexis

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BOSTOCK HK LIMITED

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S1T8528X01-Q080

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ENHANCED-1 CHIP CT0 RF IC

INTRODUCTION

S1T8528 is a 1 CHIP RF IC which can be used in high performance

CTO CLP systems at max. 60MHz. S1T8528 is designed to include a

receiver, PLL and COMPANDER to minimize PCB space

requirements. Improved RX characteristics such as inter-modulation,

spurious response and adjacent channel interface have been

included to satisfy the universal standards.

The 1 CHIP RF IC has considerably reduced the cost by including a

build-in 1’st mixer, low battery detector, fMCU, RSSI, RF regulator

and speaker amp. Also, it fulfills carrier detector threshold control,

speaker volume control, operating mode selection and MUTE function

using S/W, thus making external application easier.

FEATURES

•

ORDERING INFORMATION

+ : New product

0.7 Vrms at 12dB

+ S1T8528X01-Q0R0

Input sensitivity

Operating voltage range: 2.0V ~ 5.5V

Typical supply current: 8.9mA at 3.6V

Built-in low battery detection function ( selectable 3.45V, 3.3V, 3.0V, 2.2V, 2.1V )

Built-in speaker volume control and speaker amplifier

Built-in splatter filter

Support mode selection ( Active, Rx, Standby and Inactive mode )

FM Receiver

— Excellent Receiver characteristics

— RSSI ( Linear ) and Carrier detector output ( Digital ) function

Compander

— Easy gain control and application using external component

— -Included ALC (Automatic Level Control) circuit

Universal PLL

— RX (TX) divided counter range : 1/16 ~ 1/16383

— Reference frequency divided counter range : 1/16 ~ 1/4095

— Lock detector signal output

— Serial interface with MICOM for controlling each block

— Clock Output for MICOM oscillator substitution. ( X-tal divided clock by 2, 3, 4 and 5 )

SINAD

Device

Adjacent channel

48 QFP 1010E

Package

rejection

> 55dB

Operating Temperature

(image of the second IF)

20C to + 70C

Spurious rejection

> 60dB

48 QFP 1010E

< 10.7MHz crystal filter used >

Intermodulation

rejection

> 50dB

S1T8528

Related parts for S1T8528X0

S1T8528X0 Summary of contents

Page 1

... Lock detector signal output — Serial interface with MICOM for controlling each block — Clock Output for MICOM oscillator substitution. ( X-tal divided clock and 5 ) ORDERING INFORMATION Device + S1T8528X01-Q0R0 48 QFP 1010E + : New product Spurious rejection rejection (image of the second IF) > ...

Page 2

S1T8528 BLOCK DIAGRAM 36 35 X-tal IF AMP 37 2LOI OSC (455KHz) 2nd MIX 1MO 38 1LOI 39 RX VCO 1LOI 40 Internal VCO 41 cap. RX (10.7MHz) 42 1MI 1st MIX 1MI 43 GND 44 PLL Regulator (PLL) ( ...

Page 3

ENHANCED-1 CHIP CT0 RF IC PIN CONFIGURATION 36 37 2LOI 38 1MO 39 1LOI 40 1LOI VCO 41 RX 1MI 42 1MI 43 GND 44 (PLL) PDR REF(RF REF(PLL) TIF ...

Page 4

S1T8528 PIN DESCRIPTION Pin No Symbol 1 PDT Phase detector output terminal of the transmitter at PLL Compressor output terminal of compander: connected to the splatter filter amp input ...

Page 5

ENHANCED-1 CHIP CT0 RF IC PIN DESCRIPTION (Continued) Pin No Symbol 18 SAO 1 Output terminal of Speaker amp 1. DC voltage level is Vcc SAI Speaker Amp 1 input terminal. Between this terminal and Expander output terminal, ...

Page 6

S1T8528 PIN DESCRIPTION (Continued) Pin No Symbol 34 2MI Input terminal of mixer 2. Output from mixer 1 is entered to mixer 2 input terminal via 10.7MHz ceramic filter. Second mixer converts frequency to second intermediate frequency ( 455kHz: AM ...

Page 7

ENHANCED-1 CHIP CT0 RF IC ABSOLUTE MAXIMUM RATINGS Characteristic Maximum Supply Voltage Power Dissipation Operating Temperature Storage Temperature CURRENT CONSUMPTION AT EACH MODE Modes Active mode (Communication mode ) RX mode Stand-by mode Inactive mode (Battery Saving Mode) CURRENT CONSUMPTION ...

Page 8

S1T8528 ELECTRICAL CHARACTERISTICS Characteristic Operating Voltage RECEIVER ( V = 3.6V 49.7MHz DEV Sensitivity (input for 12dB SINAD) Input for -3dB Limiting S/N Ratio Recovered Audio Output Recovered Audio Output Voltage Drop Detector Output Resistance ...

Page 9

ENHANCED-1 CHIP CT0 RF IC ELECTRICAL CHARACTERISTICS (Continued) Characteristic Second Mixer input Impedance Second Mixer output Impedance Carrier Detector Threshold Low Battery Detector RSSI Slope RSSI Output Voltage Dynamic Range Carrier Detect Output High Voltage Carrier Detect Output Low Voltage ...

Page 10

S1T8528 ELECTRICAL CHARACTERISTICS (Continued) Characteristic Expander Gain Difference Expander Output Distortion Mute Attenuation Ratio Expander Maximum Output Voltage Maximum Output Voltage Input Current Input Voltage Output Current Output Voltage PLL regulator voltage Regulator Load Current 10 Symbol Test Conditions G ...

Page 11

ENHANCED-1 CHIP CT0 RF IC PLL PROGRAM SUMMARY • MCU ( MICOM ) Serial Interface ( MSB : 1st INPUT ) Use CLK (Pin 7 ), DATA (Pin and EN (Pin 9 ) terminals for program. DATA ...

Page 12

S1T8528 — Auxiliary - Register(16bits) MSB DATA PMC EN CLK • Programmable Counter — counter: Setting frequency for RX.VCO ( 14 Bits --> 1/16 ~ 1/16383 ) [ Default_CH. = USA_#21 ( REMOTE ) : 36.075MHz ( Div._NO ...

Page 13

ENHANCED-1 CHIP CT0 RF IC Bit Bit 7 Name D7 Default value 1 9966 * Program Latch Assignl PMC0 (Bit15 — Ref - counter: Setting reference frequency for phase detector ( 12 Bits --> 1/16 ~ ...

Page 14

S1T8528 12 Bits Reference program divider. • Control program Control register (16 Bits) Bit Bit 15 Bit 14 Name PMC0 PMC1 Description Program Program Mode Mode Control_0 Control_1 Function * Program Latch Assign Bit Bit 7 Name SPK3 SPK2 Description ...

Page 15

ENHANCED-1 CHIP CT0 Power Save Mode Assign BS1 (Bit13) BS0 (Bit12 *** MCU Clock Output Control & Frequency fMCU_M fMCUS1 fMCUS0 1 Don’t Care Don’t Care ...

Page 16

S1T8528 • Auxiliary Register (16 Bits) Auxiliary Register Function Bit Bit 15 Bit 14 Name PMC CLO5 Description Auxiliary Cap=5.9p Cap=4.8p Cap=3.2p Cap=1.6p Cap=1.3p Cap=0.8p register Selection Function ***** Program Mode Control Bit Bit 7 Bit 6 Name CD_TH2 CD_TH1 ...

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