Ordering number: EN 4588A Thick Film Hybrid IC STK311-110 RDS Demodulator Overview Package Dimensions The STK311-110 is an RDS demodulator hybrid IC for the Radio Data System (RDS), or multiplexed FM broadcasting of various kinds of data, introduced within the European Broadcasting Union (EBU). It demodulates the multiplexed data modulating signal to recover the RDS signal. In combination with an LC7070 series LSI (for sync handling, error detection and correction), a low-cost high-performance RDS data decode system can be constructed. Further, low-profile packaging is realized using Sanyo’s insulated metal substrate technology (IMST) for the base, SC system and photoresist technologies and folded board construction. unit: mm 4142 [STK311-110] Applications • Car stereos • Home stereos Features • 57kHz BPF built-in for adjustment-free operation • Few external components required for a complete RDS data demodulation system • ARI-SK/DK decoder built-in Specifications Maximum Ratings at Ta = 25°C Parameter Maximum supply voltage Symbol VCC max Ratings Unit 6.3 V Operating temperature Topr −30 to +85 °C Storage temperature Tstg −40 to +100 °C Recommended Operating Voltages at Ta = 25°C Parameter Supply voltage Symbol VCC Operating supply voltage range VCCOP Ratings Unit 5 V 4.7 to 5.5 V SANYO Electric Co., Ltd. Semiconductor Business Headquarters TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN 60597HA (ID) / 32495TH (ID) No. 4588—1/5 STK311-110 Operating Characteristics at Ta = 25°C, VCC = 5V Parameter Quiescent current Band-pass filter gain Symbol Conditions min typ max Unit – 22 30 mA 9 12.5 17 dB 55.8 57 58.2 kHz – 9 – f = 90kHz (57kHz = 0dB) −50 −38 −20 dB f = 60kHz (57kHz = 0dB) −4 −2.5 0 dB f = 54kHz (57kHz = 0dB) −5 −3.5 0 dB f = 38kHz (57kHz = 0dB) −50 −39 −35 dB – −0.5 +1.1 – % ICCO VGBPF f = 57kHz Center frequency Q Band-pass filter selectivity PLL capture range CR 5mVrms, CW input RDS detector sensitivity Pin 10 low, input on pin 17 0.15 0.4 1.0 mVrms SK detector sensitivity Pin 11 low, input on pin 17 0.3 1.0 2.0 mVrms DK detector sensitivity Pin 12 low, input on pin 17 0.8 1.5 2.6 mVrms RDS input dynamic range Pin 10 low, (ARI + RDS) signal maximum input on pin 17 30 50 – mVrms DK input dynamic range Pin 12 low, ARI signal maximum input on pin 17 75 100 – mVrms 453 456 459 VCO free-running frequency fOSC kHz Equivalent Circuit R11 is a function trimming resistor. Pins 3, 13 to 16 are no connection pins. No. 4588—2/5 STK311-110 Sample Application Circuit Pins 3, 13 to 15 are left open. Sample System Configuration No. 4588—3/5 STK311-110 Pin Functions Number Name Function 1 MONI 2 VCC Supply pin 4, 6 GND Ground pins 5 OSC VCO ceramic oscillator pin (456kHz) BPF (for adjustment) monitor output 7 CLK OUT Clock output 8 DATA OUT Data output 9 ID-ADJ SK detector sensitivity adjustment pin 10 RDS-ID RDS signal detector indicator output. Low-level output when an RDS signal is detected, and high-level when not detected. 11 SK-ID SK signal detector indicator output. Low-level output when an SK signal is detected, and high-level when not detected. 12 DK-ID DK signal detector indicator output. Low-level output when an DK signal is detected, and high-level when not detected. 17 INPUT Input pin Sample RDS Data Decoder Circuit No. 4588—4/5 STK311-110 Characteristics Data 57kHz BPF selectivity ■ ■ SK detector sensitivity adjustment No products described or contained herein are intended for use in surgical implants, life-support systems, aerospace equipment, nuclear power control systems, vehicles, disaster/crime-prevention equipment and the like, the failure of which may directly or indirectly cause injury, death or property loss. Anyone purchasing any products described or contained herein for an above-mentioned use shall: Accept full responsibility and indemnify and defend SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors and all their officers and employees, jointly and severally, against any and all claims and litigation and all damages, cost and expenses associated with such use: ➁ Not impose any responsibility for any fault or negligence which may be cited in any such claim or litigation on SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors or any of their officers and employees, jointly or severally. ➀ ■ Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed for volume production. SANYO believes information herein is accurate and reliable, but no guarantees are made or implied regarding its use or any infringements of intellectual property rights or other rights of third parties. This catalog provides information as of June, 1997. Specifications and information herein are subject to change without notice. No. 4588—5/5