SPRF2738A Low Power FM/FSK IF IC APR. 30, 2003 Version 1.2 SUNPLUS TECHNOLOGY CO. reserves the right to change this documentation without prior notice. Information provided by SUNPLUS TECHNOLOGY CO. is believed to be accurate and reliable. However, SUNPLUS TECHNOLOGY CO. makes no warranty for any errors which may appear in this document. Contact SUNPLUS TECHNOLOGY CO. to obtain the latest version of device specifications before placing your order. No responsibility is assumed by SUNPLUS TECHNOLOGY CO. for any infringement of patent or other rights of third parties which may result from its use. In addition, SUNPLUS products are not authorized for use as critical components in life support devices/ systems or aviation devices/systems, where a malfunction or failure of the product may reasonably be expected to result in significant injury to the user, without the express written approval of Sunplus. SPRF2738A Table of Contents PAGE 1. GENERAL DESCRIPTION ..........................................................................................................................................................................3 2. FEATURES ..................................................................................................................................................................................................3 3. APPLICATION FIELD ..................................................................................................................................................................................3 4. BLOCK DIAGRAM ......................................................................................................................................................................................3 5. SIGNAL DESCRIPTIONS ............................................................................................................................................................................4 l a 5.1. DIE FORM PIN OUT ................................................................................................................................................................................4 ti y l n 5.2. PIN CONFIGURATION..............................................................................................................................................................................4 5.3. ORDERING INFORMATION ........................................................................................................................................................................5 n e 6. ELECTRICAL SPECIFICATIONS................................................................................................................................................................6 O 6.1. ABSOLUTE MAXIMUM RATINGS ................................................................................................................................................................6 if d se n U o C AB s u SA l p n R u S RA B r o F 6.2. DC/AC CHARACTERISTICS .....................................................................................................................................................................6 6.3. TEST CIRCUIT ........................................................................................................................................................................................7 6.4. TYPICAL CHARACTERISTICS ....................................................................................................................................................................7 7. APPPLICATION CIRCUITS .........................................................................................................................................................................8 7.1. 27MHZ WIRELESS MOUSE OR KEYBOARD RECEIVER RF MODULE...........................................................................................................8 7.2. 49MHZ FM BABY MONITOR RECEIVER ...................................................................................................................................................8 8. PACKAGE/PAD LOCATIONS .....................................................................................................................................................................9 8.1. PAD ASSIGNMENT AND LOCATIONS .........................................................................................................................................................9 8.2. PACKAGE INFORMATION ........................................................................................................................................................................10 8.2.1. SOP16 (150mil) .......................................................................................................................................................................10 9. DISCLAIMER ............................................................................................................................................................................................. 11 10. REVISION HISTORY .................................................................................................................................................................................12 © Sunplus Technology Co., Ltd. Proprietary & Confidential 2 APR. 30, 2003 Version: 1.2 SPRF2738A LOW POWER FM/FSK IF IC 1. GENERAL DESCRIPTION 2. FEATURES SPRF2738A is a highly integrated IF (Intermediate Frequency) IC Operation voltage: 2.4V - 5.5V which is popularly used in FM / FSK (Frequency Modulation / Low current consumption: 2.5mA @ VDD = 3.0V. Frequency-Shift Keying) or OOK (On-Off Keying) communication Operating frequency up to 50MHz systems. Power down function Single chip FM/FSK or OOK receiver. l it a nly n O e if d se n U o C AB s u SA l p n R u S RA B r o F It also contains a low noise amplifier, mixer, oscillator, IF limiting RSSI function (metal option) amplifier with RSSI (Received Signal Strength Indicator, metal -107dBm sensitivity (SNR = 12dB) optioned), quadrature demodulator, amplifier, and digital data Full ESD protection slicer. The SPRF2738A is designed for single channel receiver at 10MHz - 50MHz band. It is also applicable for dual conversions 3. APPLICATION FIELD communication system. Dual conversion IF Voice/data communication. Radio control toy Wireless keyboard, mouse receiver 4. BLOCK DIAGRAM VDD MXO LMI RSSI LMO QUAD CF DEMO OPP 1.8KΩ 1.8KΩ LNAI 1.9V RSSI LNA OPO QDEM OPN 60k OSC VSS © Sunplus Technology Co., Ltd. Proprietary & Confidential OSCO 100k 60k OSCI PD CN 3 DOB CP DO APR. 30, 2003 Version: 1.2 SPRF2738A 5. SIGNAL DESCRIPTIONS 5.1. Die form PIN Out Mnemonic PIN No. Type Description OSCI 1 I Oscillator input OSCO 2 O Oscillator output MXO 3 O Mixer output, Ro = 1.8K PD 4 I Power down, internally pulled high. PD =”H”: power down; PD = ”L”: chip enable. VDD 5 I Positive power supply LMI 6 I Limit amplifier input, Ri = 1.8K CN 7 I Inverting input of comparator CF 8 O Discriminator output filtering capacitor QUAD 9 I Discriminator input for quadrature demodulator LMO 10 O Limiting amplifier output DEMO 11 O FM demodulation output OPP 12 I Non-inverting input of operational amplifier. OPN 13 I Inverting input of operational amplifier OPO 14 O Output of operational amplifier VSS 15 I Ground CP 16 I Non-inverting input of comparator DOB 17 O Inverted data output DO 18 O Comparator output, data output LNAI 19 I Input of low noise amplifier, RF input l a ti n e if d se n U o C AB s u SA l p n R u S RA B r o F Internally biased at 1.9V y l n O 5.2. PIN Configuration OSCI OSCO MXO VDD LMI CN CF QUAD 1 16 LNAI OSCI 1 16 LNAI 2 15 VSS OSCO 2 15 VSS 3 14 DO MXO 3 14 DOB 4 13 DOB VDD 4 13 NC 5 12 CP LMI 5 12 CP 6 11 OPO CN 6 11 OPO 7 10 OPN CF 7 10 OPN QUAD 8 9 DEMO 8 9 DEMO SPRF2738A -PS031 SPRF2738A -PS032 OSCI 1 16 LNAI OSCO 2 15 VSS MXO 3 14 DO VDD 4 13 RSSI LMI 5 12 CP CN 6 11 OPO CF 7 10 OPN QUAD 8 9 DEMO SPRF2738A -002C-PS031 © Sunplus Technology Co., Ltd. Proprietary & Confidential 4 APR. 30, 2003 Version: 1.2 SPRF2738A 5.3. Ordering Information Product Number Package Type SPRF2738A - C Chip form SPRF2738A - PS031 Package form - SOP16 SPRF2738A - PS032 Package form - SOP16 SPRF2738A - 002C - C Chip form SPRF2738A - 002C - PS031 Package form - SOP16 Note: The differences between the above two parts are listed as below. Product Number Sensitivity @3.0V (dBm) RSSI pad option -110 -51 Yes No -106 -38 SPRF2738A - PS032 SPRF2738A - 002C - C ti n e No if d se n U o C AB s u SA l p n R u S RA B r o F SPRF2738A - 002C - PS031 © Sunplus Technology Co., Ltd. Proprietary & Confidential y l n DOB pad option SPRF2738A - C SPRF2738A - PS031 l a Input IP3 (dBm) 5 O Yes APR. 30, 2003 Version: 1.2 SPRF2738A 6. ELECTRICAL SPECIFICATIONS 6.1. Absolute Maximum Ratings Characteristics Symbol Ratings DC Supply Voltage V+ < 6.0V Input Voltage Range VIN -0.5V to V+ + 0.5V Operating Temperature TA 0℃ to +60℃ TSTO -50℃ to +150℃ Storage Temperature Note: Stresses beyond those given in the Absolute Maximum Rating table may cause operational errors or damage to the device. ti 6.2. DC/AC Characteristics For normal operational l a conditions, see DC/AC Electrical Characteristics. y l n (VDD = 3.0V, VSS = 0V, PD = 0V, fIN = 27.045MHz, X’TAL=26.690MHz, fDEV = 3.0KHz, fMOD = 1.0KHz, TA = 25℃) Characteristics DC Supply Voltage Symbol Conditions n e Limit Min. 2.4 O Max. 3.0 5.5 V 2.5 - mA - µA if d se n U o C AB s u SA l p n R u S RA B r o F VDD Unit Typ. Operating Current (RX) Icc2 PD = 0 - Power Down Current ISB PD = 1 or floating - 1.0 LNA Input Impedance |Zi| - 2.0 - KΩ System Noise Figure NF - 11 - dB System Sensitivity SRX - -107 -100 dBm LNA AC Gain DEMO out SNR = 12dB ALNA - 17 - dB LNA -3dB Bandwidth BW - 50 - MHz Mixer Conversion Gain CG - 24 - dB Mixer Output Impedance RMXO - 1.8 - KΩ Limiting Input Impedance RLMI - 1.8 - KΩ Limiting AC Gain ALMT - 84 - dB Demodulator Output Level VDEMO - 450 - mVp-p Demo Output DC Voltage VDCDEMO - 1.6 - V RRc - 60 - KΩ - 1.0 - µA/dB - 0.2 - mA Auto Threshold Control Resistor RSSI Sensitivity DO Driving Current © Sunplus Technology Co., Ltd. Proprietary & Confidential IRSSI Metal option IOL, IOH 6 APR. 30, 2003 Version: 1.2 SPRF2738A 6.3. Test Circuit COB (Chip on Board) Testing Circuit J1 VCC C1 C14 2.2n 104 CON1 C3 51 103 C4 J3 1 2 VCC PD 10k 10k SPRF2738_COB PD 12 l a ti OPP 13 14 OPO 15 AVSS 16 CP 17 DOB 18 DO 19 LNAI 20 NC U1 R2 2.2n 1 2 ANT R1 11 R3 OPN 47uF J2 DO C2 n e DEMO 1 2 3 30 27 3 100 X1 C12 LMO 10 QUAD 9 CF CN 8 6 LMI AVDD 5 PD 4 7 C7 C8 C9 104 1n N/U Murata CFWM455E R5 47k 2 R4 104 2 C11 103 F1 3 39 O C13 N/U L2 TOKO 8128 1 C10 PD MIXO 3 1 C6 2 10uH C5 1 L1 2 1 OSCI OSCO if d se n U o C AB s u SA l p n R u S RA B r o F y l n VCC 26.690MHz 6.4. Typical Characteristics 4 Supply Current (mA) 3 2 1 Vdemo, demodulator output voltage (V) Current Consumption 5 0 1 2 3 4 Supply Voltage (V) © Sunplus Technology Co., Ltd. Proprietary & Confidential 5 6 7 3 Demodulator DC Output, VCC=3.0V 2.5 2 1.5 1 0.5 0 430 440 450 460 freq, LMI input frequency (kHz) 470 480 APR. 30, 2003 Version: 1.2 SPRF2738A 7. APPPLICATION CIRCUITS 7.1. 27MHz Wireless Mouse or Keyboard Receiver RF Module SPRF2738A is almost compatible with MC3361 Digital Data Output 27.145MHz RF Input R1 C1 10k 2.2n C3 OPN 9 DEMO 10 11 CP OPO 12 13 DOB 14 DO LNAI VSS 16 15 103 U1 10uH 30 27 F1 2 1 1 7 C7 C8 104 2.2n 8 CF CN 6 5 4 LMI AVDD MIXO 2 L2 R4 104 100 VCC R5 47k C13 C1 R1 C4 1u 10k 0.1u 2 C11 103 X1 C12 1 C10 26.690MHz *Note TOKO 8128 3 C6 3 2 C5 3 OSCO OSCI 1 L1 QUAD l it a nly n O e if d se n U o C AB s u SA l p n R u S RA B r o F SPRF2738A-PS031 Murata CFWM455E 39 L1: Prevents Crystal from Base Tone Oscillating F1: 455k Band Pass Filter Note: C8 capacitor value should be changed to 2.2nF when MC3361 is replaced. 7.2. 49MHz FM Baby Monitor Receiver Audio Output 49.86MHz RF Input R2 C3 27k L1 C5 C6 3.3uH 30 27 C7 C8 104 1n 9 DEMO QUAD CF 7 CN 6 5 LMI AVDD 4 MIXO 3 2 1 OSCI OSCO SPRF2738A-PS031 U1 8 11 10 OPN CP DOB OPO 12 13 14 DO 15 LNAI VSS 16 103 TOKO 8128 1 1 C11 R4 103 104 100 X1 C12 1 C10 2 3 2 3 F1 2 49.405MHz L2 R5 47k C13 Murata CFWM455E 39 VCC L1: Prevents Crystal from Base Tone Oscillating F1: 455k Band Pass Filter © Sunplus Technology Co., Ltd. Proprietary & Confidential 8 APR. 30, 2003 Version: 1.2 SPRF2738A 8. PACKAGE/PAD LOCATIONS 8.1. PAD Assignment and Locations Please contact Sunplus sales representatives for more information. l a ti n e if d se n U o C AB s u SA l p n R u S RA B r o F © Sunplus Technology Co., Ltd. Proprietary & Confidential 9 y l n O APR. 30, 2003 Version: 1.2 SPRF2738A 8.2. Package Information 8.2.1. SOP16 (150mil) D E X y l a H 16 ti 9 n e A1 A if d se n U o C AB s u SA l p n R u S RA B r o F y l n O L1 pin 1 index detail X 1 8 e b Symbol A Dimension in inch Min. Typ. Max. 0.053 - 0.069 A1 0.004 - 0.010 b - 0.016 - D 0.386 - 0.394 E 0.150 - 0.157 - 0.050 - H 0.228 - 0.244 L1 0.016 - 0.050 y - - 0.004 e © Sunplus Technology Co., Ltd. Proprietary & Confidential 10 APR. 30, 2003 Version: 1.2 SPRF2738A 9. DISCLAIMER The information appearing in this publication is believed to be accurate. Integrated circuits sold by Sunplus Technology are covered by the warranty and patent indemnification provisions stipulated in the terms of sale only. SUNPLUS makes no warranty, express, statutory implied or by description regarding the information in this publication or regarding the freedom of the described chip(s) from patent infringement. MERCHANTABILITY OR FITNESS FOR ANY PURPOSE. prices at any time without notice. FURTHERMORE, SUNPLUS MAKES NO WARRANTY OF SUNPLUS reserves the right to halt production or alter the specifications and Accordingly, the reader is cautioned to verify that the data sheets and other information in this publication are current before placing orders. Products described herein are intended for use in normal commercial applications. Applications involving unusual environmental or reliability requirements, e.g. military equipment or medical life support equipment, are specifically not recommended without additional processing by SUNPLUS for such applications. l a Please note that application circuits ti illustrated in this document are for reference purposes only. n e if d se n U o C AB s u SA l p n R u S RA B r o F © Sunplus Technology Co., Ltd. Proprietary & Confidential 11 y l n O APR. 30, 2003 Version: 1.2 SPRF2738A 10. REVISION HISTORY Date Revision # APR. 30, 2003 1.2 SEP. 10, 2002 1.1 Description Page 1. Change operating range from 2.4V - 4.5V to 2.4V - 5.5V 6 2. Add C14 to the COB application circuit. 7 3. Change ordering information. 5 1. Add description of "Die form pin out". 4 2. Spec modification and typing correction. 4. Add bonding options for SPRF2738A-PS031, SPRF2738A-PS032. AUG. 14, 2002 1.0 ti Original n e if d se n U o C AB s u SA l p n R u S RA B r o F © Sunplus Technology Co., Ltd. Proprietary & Confidential 12 5, 7 l a 3. Add description of "COB (Chip on Board) Testing Circuit ". 6 y l n 8 12 O APR. 30, 2003 Version: 1.2