SL6649-MPES

SL66491-1 ZARLINK | Alldatasheet

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Technical content

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The SL6649-1 is a low power direct conversion radio receiver for the reception of frequency shift keyed transmissions. It features the capability of 'power down' for battery conservation. The device also includes a low battery flag indicator. 3115 - 4.1

FEATURES

I Very Low Power Operation - typ. 3.7mW I Single Cell Operation with External Inverter I Complete Radio Receiver in One Package I Operation up to 200MHz I 100nV Typical Sensitivity I Operates up to 1200 BPS I On Chip Tunable Active Filters I Minimum External Component Count I Low Power Down Current Typical 5µA

APPLICATIONS

I Low Power Radio Data Receiver I Wristwatch Credit Card Pager I Radio Paging I Ultrasonic Direction Indication I Security Systems I Remote Control Systems ABSOLUTE MAXIMUM RATINGS Supply Voltage 6V Storage Temperature -55 °C to +150°C Operating Temperature -20 °C to +70°C

ORDERING INFORMATION

SL6649-I/KG/MPES - Small outline (MP28) supplied in tubes SL6649-1/KG/MPEF - Small outline (MP28) supplied in tape & reel SL6649-1 200MHz DIRECT CONVERSION FSK DATA RECEIVER PIN DESCRIPTION

1 GND

2 BATTERY ECON

3 GYRATOR CURRT ADJ

4 REF VOLTAGE

5 BANDGAP REF VOLT

7 BIT RATE FILTER

8 DATA OUTPUT

9 GND

13 BATT FLAG INPUT

14 BATT FLAG OUTPUT

N.B. It is advisable to connect NC pins to ground. Figure 1: Pin Connections - Top View PIN DESCRIPTION 28 CHANNEL B TEST.

27 LO INPUT CHANNEL B

26 LO INPUT CHANNEL A

25 V CC1 (MIXER)

24 MIXER I/P A

23 MIXER I/P B

22 CHANNEL A TEST

21 LO CURRENT SOURCE

20 RFA II (EMIT) RF DEC

19 RFA II (BASE) RF INPUT

18 RF DEC

17 RF O/P

16 COLPITTS OSC O/P DISABLE

ELECTRICAL CHARACTERISTICS

These characteristics are guaranteed over the following conditions (unless otherwise stated). Tamb = 25°C, VCC1 = 2.5V, VCC2 = 3.5V Value Characteristic Pin Min Typ Max Units Conditions Supply Voltage VCC12 5 V R 1.3 2.8 V V CC1 ≤ (VCC2)-0.7 Supply Voltage VCC2 6,16 1.8 2.3 3.5 V Supply Current lCC1 17, 25, 1.6 2.0 mA 26, 27 (I RF) Included Supply Current ICC2 6,16 0.65 0.80 mA Power Down lCC1 17, 21, 25, 5 12 µA Batt Econ Low 26, 27 Power Down lCC2 6,16 3 12 µA Batt Econ Low Bandgap Reference 5 1.15 1.22 1.35 V Voltage Reference 4 0.93 1.0 1.13 V RF Amplifier Supply Current (I RF) 17 430 535 640 µA Power Down 17 µA Included in Power Down I CC1 Mixers Gain to “IF Test” 32 38 dB L.O. inputs driven in parallel with 50mV RMS @ 50MHz. IF = 2kHz Oscillator Current Source 21 215 270 330 µA Power Down 21 µA Included in Power Down l CC1 Decoder Sensitivity 40 µVrms Signal injected at “IF TEST” B.E.R. ≤1 in 30 5kHz deviation @ 500 bits/sec BRF capacitor = 1nF Output Mark Space Ratio 8 7:9 9:7 Output Logic High 8 85 %V CC2 Output Logic Low 15 %V CC2 Battery Economy Input Logic High 2 (V CC2)-0.3 V Powered Up Input Logic Low 2 0.3 V Powered Down Input Current 0.05 1 µA Battery Flag Output High Level 14 85 %V CC2 Battery Low R L > 1MΩ Output Low Level 14 15 %V CC2 Battery High R L > 1 MΩ Flag trig Level 13 V R-25mV V R+25mV V Voltage Reference (V R) pin 4 Colpitts Oscillator Frequency 15 kHz R=90K, pin 3 to GND 15 kHz R=360K, pin 3 to GND

TYPICAL ELECTRICAL CHARACTERISTICS These characteristics are guaranteed by design. Tamb = 25°C, VCC1 = 2.5V, VCC2 = 3.5V Value Characteristic Pin Min Typ Max Units Conditions RF Amplifier Noise Figure 5.5 dB RS = 50 Ω Power Gain 14 dB Input Impedance 19 See Fig. 8 Mixer RF Input Impedance 23, 24 See Figs. 9 (a) and (b) LO Input Impedance 26, 27 See Fig. 10 LO DC Bias Voltage 26, 27 V Equal to pin 25 Detector Output Current 7 ±4 µA Colpitts Oscillator Frequency 16 15 kHz R = 270K, Pin 3 to GND Output Voltage 16 20 mVp-p R L >> 1MΩ N.B. Refer to Channel Filter Fig. 4 RECEIVER CHARACTERISTICS (GPS DEMONSTRATION BOARD) Measurement conditions (unless otherwise stated): Applications circuit diagram Fig.6; VCC1 = 1.3V; VCC2 = 2.3V; Tamb = 25°C; Colpitts oscillator resistor = 270kΩ; mixer input A and B phase balance = 180°; local oscillator input A and B phase balance = 90°. Measurement methods as described by CEPT Res 2 specification. FIN = 153MHz (512 baud). Value Characteristic Min Typ Max Units Conditions Terminal Sensitivity Tone -127 -124 dBm ∆f = 4.5kHz, RS = 50Ω only 4/5 call reception Deviation Acceptance ±2.5 kHz 3dB De-Sensitisation. F IN = FLO Centre Frequency Acceptance ±2.0 ±2.5 kHz ∆f = 4.5kHz Adjacent Channel Rejection 65 70 dB ∆f = 4.5kHz Channel Spacing 25kHz Adjacent + 1 Channel Rejection 65 70 dB External capacitors on test Third Order Intermod adj-1 + adj-2 52 53 dB pins A and B. Figure 2: Block Diagram of SL6649-1 Direct Conversion Receiver

Figure 6: Block Diagram and Applications Circuit (for component values see next page)

COMPONENTS LIST FOR FIGURE 6 Capacitors Resistors Inductors Transformers Miscellaneous C1 1nF C11 1nF R1 2.2k Ω L1 10 µH T1 1:1 Transformer IC1 SL6649-1 C2 1nF C12 1nF R2 500k Ω Variable L2 220nH Primary/Secondary TR1 SOT-23 Transistor C3 1nF C13 10pF R4 100 Ω L3 150nH Inductance=200nH with f τ ≥ 1.3GHz C4 5.6pF C14 1nF R5 100 Ω L4 100nH (EG. ZETEX BFS 17) C5 1nF C15 10pF R6 100 Ω X1 153MHz 7th C6 2.2 µF C16 1nF R7 100 Ω overtone crystal C7 1nF C17 5.6pF R8 100K Ω VC2 1.5-10pF C8 1nF C18 4.7pF C9 2.2 µF C19 1nF C10 2.2 µF C20 1nF Figure 7: Pinning Diagram of the SL6649-1

Figure 8: RF Amplifier FREQ S11 S12 S22 S21

15 UNC

16 CO Colpitts Oscillator

17 RO RFA I (collector) RF Output

18 RDA RFA I (base) RF Decouple

19 Rl RFA II (base) RF Input

20 RDB RFA II (emitter) RF Decouple

21 Ol LO Current Source

22 TA Channel A Test

23 MA Mixer l/P B

24 MB Mixer l/P A

25 VCIM V

CC1 (mixer)

26 OA LO Input Channel A

27 OB LO Input Channel B

28 TB Channel B Test

1 GND Ground

2 BEC Battery Economy

3 Gl Gyrator Current Adjust

4 Vr Reference Voltage

5 BG Bandgap Reference Voltage

6 Vc2 V CC 2

7 BR Bit rate Filter

8 DO Data Output

9 GND Ground

10 UNC

11 UNC

12 UNC

13 Fl Battery Flag Input

14 FO Battery Flag Output

Figure 13(a): SL6649-1 Power Supply Options (c) should be regarded as a test set up only.

A typical 1 volt pager system suitable as a wrist watch application is shown in Figure 13 (b). Only 3 integrated circuits are required to perform all the functions of a tone only pager. These are SL6649-1 direct conversion radio receiver and the MV6639 POCSAG decoder plus a 1 volt E 2PROM (eg. Seiko Epson SPM28C51). The SL6649-1 receives and demodulates the data, and monitors the battery voltage. The interface between the decoder and receiver consists of only 3 connections excluding the supplies. The MV6639 performs all the functions required for a POCSAG decoder for tone only and/or pager messaging at 512 or 1200 baud. A 32kHz watch crystal is used as the reference frequency for the decoder. The decoder voltage doubler output V CC2 is available to power not only the receiver, but an alternative higher voltage E 2PROM and microprocessor/LCD driver for a full tone and message pager. Figure 13(b): Tone Pager Applications Example Showing Interface with SL6649-1 Receiver OPERATION AT OTHER FREQUENCIES AND DATA RATES The values given in the components list for figure 6 are appropriate for frequencies nominally around 153MHz. In order to use the receiver at other frequencies it is necessary to change the capacitor C4 which is resonant with the transformer T1, and L2 and L4 in the oscillator circuit. It is also necessary to change the values of capacitors C13 and C15 such that the reactance of these is equal to 100 Ω at the required frequency. It is of course necessary to use a crystal of the required frequency and stability. In order to use the receiver at higher data rates it is only necessary to reduce the value of C8, for example, at 1200bps, C8=470pf. A demonstration board has been designed specifically to demonstrate terminal sensitivity. It is possible to connect an antenna to the board with suitable matching but no guarantee can be given regarding field strength sensitivity. However, with a suitably designed combination of PCB and antenna, a sensitivity of 5µV/M should be attainable.

GEC PLESSEY SEMICONDUCTORS Cheney Manor, Swindon, Wiltshire SN2 2QW, United Kingdom. Tel: (01793) 518000 Fax: (01793) 518411 GEC PLESSEY SEMICONDUCTORS P.O. Box 660017

1500 Green Hills Road,

Scotts Valley, California 95067-0017, United States of America. Tel: (408) 438 2900 Fax: (408) 438 5576 This publication is issued to provide information only which (unless agreed by the Company in writing) may not be used, applied or reproduced for any purpose nor form part of any order or contract nor to be regarded as a representation relating to the products or services concerned. No warranty or guarantee express or implied is made regarding the capability, performance or suitability of any product or service. The Company reserves the right to alter without prior notice the specification, design or price of any product or service. Information concerning possible methods of use is provided as a guide only and does not constitute any guarantee that such methods of use will be satisfactory in a specific piece of equipment. It is the user's responsibility to fully determine the performance and suitability of any equipment using such information and to ensure that any publication or data used is up to date and has not been superseded. These products are not suitable for use in any medical products whose failure to perform may result in significant injury or death to the user. All products and materials are sold and services provided subject to the Company's conditions of sale, which are available on request. CUSTOMER SERVICE CENTRES

• FRANCE & BENELUX Les Ulis Cedex Tel: (1) 69 18 90 00 Fax : (1) 64 46 06 07
• GERMANY Munich Tel: (089) 3609 06-0 Fax : (089) 3609 06-55
• ITALY Milan Tel: (02) 66040867 Fax: (02) 66040993
• JAPAN Tokyo Tel: (03) 5276-5501 Fax: (03) 5276-5510
• NORTH AMERICA Scotts Valley, USA Tel (408) 438 2900 Fax: (408) 438 7023.
• SOUTH EAST ASIA Singapore Tel: (65) 3827708 Fax: (65) 3828872
• SWEDEN Stockholm Tel: 46 8 702 97 70 Fax: 46 8 640 47 36
• TAIWAN, ROC Taipei Tel: 886 2 5461260. Fax: 886 2 7190260
• UK, EIRE, DENMARK, FINLAND & NORWAY Swindon Tel: (01793) 518527/518566 Fax : (01793) 518582 These are supported by Agents and Distributors in major countries world-wide. © GEC Plessey Semiconductors 1995 Publication No. 3115 Issue No. 4.0 September 1995 TECHNICAL DOCUMENTATION - NOT FOR RESALE. PRINTED IN UNITED KINGDOM. PACKAGE DETAILS Dimensions are shown thus: mm (in). For further package information, please contact your local Customer Service Centre. 2·36/2·64 (0·093/0·104)

28 LEADS AT

1·27 (0·050) NOM. SPACING 17·70/18·10 (0·697/0·713) 0·10/0·30 (0·004/0·012) 0·41/1·27 (0·016/0·050) 0·25/0·71 (0·010/0·028) 0·23/0·33 (0·009/0·013) 28-LEAD MINIATURE PLASTIC DIL - MP28 0·74 (0·029) MAX. ×45° 0·36/0·48 (0·014/0·019) 7·40/7·60 (0·291/0·299) 10·00/10·64 (0·394/0·419) SPOT REF. CHAMFER REF. 0-8° NOTES 1. Controlling dimensions are inches. 2. This package outline diagram is for guidance only. Please contact your GPS Customer Service Centre for further information.

www.zarlink.com Information relating to products and services furnished herein by Zarlink Semiconductor Inc. or its subsidiaries (collectively “Zarlink”) is believed to be reliable. However, Zarlink assumes no liability for errors that may appear in this publication, or for liability otherwise arising from t he application or use of any such information, product or service or for any infringement of patents or other intellectual property rights owned by third parties which may result from such application or use. Neither the supply of such information or purchase of product or service conveys any license, either express or implied, u nder patents or other intellectual property rights owned by Zarlink or licensed from third parties by Zarlink, whatsoever. Purchasers of products are also hereby notified that the use of product in certain ways or in combination with Zarlink, or non-Zarlink furnished goods or services may infringe patents or other intellectual property rights owned by Zarlink. This publication is issued to provide information only and (unless agreed by Zarlink in writing) may not be used, applied or reproduced for any purpose nor form part of any order or contract nor to be regarded as a representation relating to the products or services concerned. The products, their specifications, services and other information appearing in this publication are subject to change by Zarlink without notice. No warranty or guarantee express or implied is made regarding the capability, performance or suitability of any product or service. Information concerning possible methods of use is provided as a guide only and does not constitute any guarantee that such methods of use will be satisfactory in a specific piece of equipment. It is the user’s responsibility t o fully determine the performance and suitability of any equipment using such information and to ensure that any publication or data used is up to date and has not been superseded. Manufacturing does not necessarily include testing of all functions or parameters. These products are not suitable for use in any medical products whose failure to perform may result in significant injury or death to the user. All products and materials are sold and services provided subject to Zarlink’s conditions of sale which are available on request. Purchase of Zarlink’s I2C components conveys a licence under the Philips I 2C Patent rights to use these components in and I 2C System, provided that the system conforms to the I2C Standard Specification as defined by Philips. Zarlink, ZL and the Zarlink Semiconductor logo are trademarks of Zarlink Semiconductor Inc. Copyright Zarlink Semiconductor Inc. All Rights Reserved. TECHNICAL DOCUMENTATION - NOT FOR RESALE For more information about all Zarlink products visit our Web Site at