U2514B

U2514B TEMIC | Alldatasheet

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Technical content

Features

/C0068FM wideband AGC /C0068LO-buffer for digital tuning /C0068Integrated stop signal generation with true AM/ FM discriminators /C0068Adjustable stop signal sensitivity /C0068Automatic stereo-mono-blend /C0068High cut /C0068Mute function /C0068Pilot canceller /C0068Supply voltage range 3 to 12 V /C0068Package: SSO28 Block Diagram FM IF + demodulator Matrix decoder + HCC FM front end 653 1 5 1 1 2 5 FMOSCE FMOSCB FMRF FMDET AFSM MPXOUT MPXIN AM FM stop signal detect AM IF + demodulatorAM front end 71 3 10 12 17 9 Pilot PLL AMOSC IFOUT FMIFIN AMIFIN METER AMSADJ Control unit 22 26 CTRLA AMFM V Ref VREF OUTR OUTL LPF CERES GND CTRLB VS FMIN FMAGC OSCOUT GNDRF AMIN 12305 Figure 1.

Figure 2. Pinning

1 AMIN AM antenna input

2 FMAGC FM-AGC time constant

3 FMRF FM RF tank

4 GNDRF Ground RF

5 FMOSCE FM oscillator emitter

6 FMOSCB FM oscillator basis

7 AMOSC AM oscillator

8 OSCOUT Buffered AM/FM oscillator

9 AMSADJ Current-input for AM stop signal

10 IFOUT AM/FM IF output

11 AFSM AF smoothing voltage

12 FMIFIN FM IF amplifier input

13 AMIFIN AM IF amplifier input

14 VREF Reference voltage

15 FMDET FM discriminator output

16 GND Ground

17 METER Fieldstrength voltage output

18 OUTR AF output right

19 OUTL AF output left

20 CERES Resonator 456 kHz

21 LPF Low pass filter for Pilot-PLL

22 CTRLA Control input for mute, search

23 CTRLB Control input for forced mono,

24 MPXIN Stereo decoder MPX input

25 MPXOUT AM/FM MPX output

26 AMFM AM/FM switch and pilot

27 VS Supply voltage

28 FMIN FM antenna input

Rev. A2, 04-Nov-96 Preliminary Information 4 (15) AMIN 12417 AMIN IAGC GNDRF VREF Figure 6. The AM antenna coil is connected between AMIN (Pin 1) and VREF (Pin 14). In order to ensure that the AGC operates correctly, a coil impedance of approximately 25 k/C0087 is necessary. AMOSC 12419 6 k AMOSC7 VREF AM ON GNDRF Figure 7. The AM oscillator has to be loaded by an external tank referred to VREF (Pin 14). If reduction of the oscillator voltage is necessary, this may be achieved by a parallel resistor. AMSADJ

12418 AMSADJ

Figure 8. The ceramic resonator of the stereo decoder PLL circuit is used as a stop signal detector for AM signals. For this purpose, the parallel resonance frequency of the resonator, which is unloaded about 456 kHz, is reduced by an internal load capacitor down to 455 kHz. Therefore, the AM IF must be 455 kHz. The internal loading capacitor is defined by the current through AMSADJ (Pin 9) to GND. An external resistor is connected between AMSADJ (Pin 9) and GND. It allows the alignment of the stop signal center frequency. The width of the stop window is typicaly 800 Hz. If AM search- mode is not activated, the pin is internally pulled to ground. IFOUT 12420 AMFM IFOUT Figure 9. The IF output (IFOUT Pin 10) of both the FM and the AM mixer has to be loaded into external IF-tank circuits refered to VREF (Pin 14). Q-factor of IF coils must not be lower than 50.

Rev. A2, 04-Nov-96 9 (15) CTRLB The output CTRLB indicates whether the receiver is working in mono or stereo mode. Mode /C0049/C0050/C0053/C0057/C0052 Stereo Mono

1.2 V V S

Figure 26. If a control voltage less than 0.8 V is applied at CTRLB, the receiver is forced to mono. t STOP /C0049/C0050/C0053/C0057/C0050 V S V CTRLB Figure 27. In the search mode (VCTRLA < 0.7 V), the internally generated stop signal is available at CTRLB as low active signal. Absolute Maximum Values Reference point Pin 16 and 4, unless otherwise specified Parameters Symbol Value Unit Supply voltage V S /C0049/C0050 V Power dissipation P 750 mW External reference current to GND ILoad 3 mA Junction temperature Tj /C0041125 °C Storage temperature Tstg /C004225 to /C0041125 °C Ambient temperature Tamb /C004230 to /C004185 °C Electrostatic handling ±V ESD 2000 V Thermal Resistance Parameters Symbol Value Unit Junction ambient when soldered to PCB R thJA tbd. K/W

Rev. A2, 04-Nov-96 Preliminary Information 10 (15)

Electrical Characteristics

V S = 9 V , Tamb =/C004125°C; reference point Pins 4 or 16, unless otherwise specified Parameters Test Conditions / Pins Symbol Min. Typ. Max. Unit DC supply Supply voltage range Pin 27 V S 3.0 12.0 V Supply current Pin 27 IS 8 mA Reference voltage Pin 14 V Ref 2.3 2.4 2.5 V CTRLA Input voltage Search mode Reception mode Mute function Pin 22 V CTRLA 0.8 0.8 0.7 V Ref 1.3 V V V CTRLB Output voltage Mono Stereo Reception mode V CTRLA > 0.8 V Pin 23 V CTRLB 1.2 1.2 V S V V Stop signal High Low Search mode V CTRLA < 0.8 V V CTRLB 1.5 V S 0.6 V V Stop window (FM) Stop window (AM) fcenter = 455 kHz adjusted at AMSADJ f f kHz kHz Input voltage Forced mono V CTRLB 0 0.8 V AMFM Input voltage AM FM Pin 26 open VAMFM 0 1.1 V OSCOUT Output voltage AM FM Pin 8 fLO = 110 MHz, unloaded V OSCOUT 120 150 mVrms mVrms DC-current (FM) IOSCOUT 0.7 mA METER Starting point meter (FM) Pin 17 vstart 5 /C0109V Slope of meter (FM) R 17 = 150 k/C0087Pin 17 vslope 0.04 V/dB Usable meter range (FM) Pin 17 48 dB DC-output voltage (AM) See AM test circuit, Pin 17 V RF = 0 dB/C0109V V RF = 40 dB/C0109V V RF = 100 dB/C0109V V METER 0.05 0.7 1.8 V V V

Rev. A2, 04-Nov-96 11 (15) UnitMax.Typ.Min.SymbolTest Conditions / PinsParameters MPXOUT Output voltage (AM) See AM test circuit f RF =1 MHz, m = 0.3,fmod = 1 kHz, Rgen = 25 k/C0087, VCTRLA = 1.7 V , Pin 25 V RF = 20 dB/C0109V V RF = 40 dB/C0109V V RF = 100 dB/C0109V V MPXOUT 35 mV rms mV rms mV rms Total distortion V RF = 100 dB/C0109V d 0.7 % Signal plus noise-to-noiseV RF = 40 dB/C0109V V RF = 100 dB/C0109V (S+N)/N 27 dB dB Sensitivity (AM) (S+N)/N = 26 dB 38 dB /C0109V Sensitivity (FM) f0 = 98 MHz, deviation = ±75 kHz, without de-emphasis (S+N)/N = 26 dB 4 /C0109V MPXIN Input resistance Input voltage Pin 24 R MPXIN V MPXIN 900 k/C0087 mV pp OUTL, OUTR AF output voltage Output current Muting attenuation Channel separation Pilot signal suppression /C0068f = ±75 kHz, fmod = 1 kHz, V FMIN = 1 mV , fFMIN = 97 MHz Pin 18/19 V OUT Iout /C0097M /C0097 /C009719kHz 110 mV rms /C0109A dB dB dB CERES PLL oscillator frequency/C0068f = ±75 kHz, fmod = 1 kHz, Pilot /C0068f = ±6.7 kHz V FMIN = 1 mV , fFMIN = 97 MHz Pin 20 fCERES 456 kHz FMRF DC-current Pin 3 IFMRF 1 mA V oltage gain preamplifierSee FM test circuit 20 /C0032 log (v FMRF /v0) gFMRF 16 dB AGC threshold 3 dB compression at Pin 3 v0AGC 5 mV IFOUT DC-current Pin 10 IIFOUT 0.4 mA Conversion gain 20 /C0032 log (vIFOUT /vFMRF ) gc 20 dB FMIFIN Input resistance Pin 12 rFMIFIN 330 /C0087

3 R 11

2 C 20

Figure 28. Application circuit

Figure 29. Application circuit (upgraded)

Rev. A2, 04-Nov-96 Preliminary Information 14 (15) Dimensions in mm 12.7 12.9 2.35 0.25 0.10 0.30 0.80 10.4 7.5 7.3 9.25 8.75 0.25 10.50 10.20 technical drawings according to DIN specifications

Rev. A2, 04-Nov-96 15 (15) Ozone Depleting Substances Policy Statement It is the policy of TEMIC TELEFUNKEN microelectronic GmbH to 1. Meet all present and future national and international statutory requirements. 2. Regularly and continuously improve the performance of our products, processes, distribution and operating systems with respect to their impact on the health and safety of our employees and the public, as well as their impact on the environment. It is particular concern to control or eliminate releases of those substances into the atmosphere which are known as ozone depleting substances (ODSs). The Montreal Protocol (1987) and its London Amendments (1990) intend to severely restrict the use of ODSs and forbid their use within the next ten years. Various national and international initiatives are pressing for an earlier ban on these substances. TEMIC TELEFUNKEN microelectronic GmbH semiconductor division has been able to use its policy of continuous improvements to eliminate the use of ODSs listed in the following documents. 1. Annex A, B and list of transitional substances of the Montreal Protocol and the London Amendments respectively 2. Class I and II ozone depleting substances in the Clean Air Act Amendments of 1990 by the Environmental Protection Agency (EPA) in the USA 3. Council Decision 88/540/EEC and 91/690/EEC Annex A, B and C (transitional substances) respectively. TEMIC can certify that our semiconductors are not manufactured with ozone depleting substances and do not contain such substances. We reserve the right to make changes to improve technical design and may do so without further notice. Parameters can vary in different applications. All operating parameters must be validated for each customer application by the customer. Should the buyer use TEMIC products for any unintended or unauthorized application, the buyer shall indemnify TEMIC against all claims, costs, damages, and expenses, arising out of, directly or indirectly, any claim of personal damage, injury or death associated with such unintended or unauthorized use. TEMIC TELEFUNKEN microelectronic GmbH, P.O.B. 3535, D-74025 Heilbronn, Germany Telephone: 49 (0)7131 67 2831, Fax number: 49 (0)7131 67 2423