U2514B-AFNG3 TEMIC [TEMIC Semiconductors], U2514B-AFNG3 Datasheet
U2514B-AFNG3
Related parts for U2514B-AFNG3
U2514B-AFNG3 Summary of contents
Page 1
... AM/FM Receiver for Digital Tuning with FM-Stereo Decoder Description The U2514B is an integrated bipolar radio suitable for digital tuning systems. It contains a FM front end with pre-amplifier and FM-stereo decoder as well as a complete AM receiver and demodulator. Stop-signal Features D FM wideband AGC D LO-buffer for digital tuning ...
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... FMOSCB 6 AMOSC 7 OSCOUT 8 AMSADJ 9 IFOUT 10 AFSM 11 12 FMIFIN AMIFIN 13 14 VREF 10547 Figure 2. Pinning Ordering and Package Information Extended Type Number U2514B-AFN U2514B-AFNG3 2 (15) Preliminary Information Pin Symbol 28 FMIN 1 AMIN 2 FMAGC FMRF 4 GNDRF 26 AMFM 5 FMOSCE FM oscillator emitter 6 FMOSCB FM oscillator basis ...
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... FM A resistor is connected between OSCOUT (Pin 8) and VREF (Pin 14). It determines the amplitude of oscillator voltage which is fed to the PLL circuit. The TEMIC PLL familiy U428xBM is recommended because it offers high signal to noise ratio and low current consumption. U2514B 1 GNDRF 12415 Figure 4. ...
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... U2514B AMIN AMIN 1 I AGC GNDRF 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 necessary. AMOSC 7 AMOSC VREF 6 k 12419 GNDRF Figure 7. The AM oscillator has to be loaded by an external tank referred to VREF (Pin 14) ...
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... A capacitor is connected between AFSM (Pin 11) and GND for smoothing of the FM-AF. This is necessary to generate a modulation independent stop signal. (Because the deviation of the FM signal (75 kHz) can be greater W than the stop signal window (25 kHz)). In the AM-search-mode, the external capacitor smoothes the demodulated AM-IF-signal. U2514B VREF 15 FMDET 12422 Figure 12. MPXOUT 11 ...
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... U2514B METER VREF METER Figure 14. This pin is driven by a current corresponding to the level of the FM or AM-IF-signal. The required external load W consists of a resistor (100 to 150 parallel with an m external capacitor (e.g necessary to achieve a good THD in AM mode and to supress AF influence in FM mode) ...
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... mode (depending on the VREF discriminator coil alignment) and 0 mode (depending on the signal level). OUTR/OUTL The open collector output of OUTR/OUTL (Pin 18/19) requires an external resistor of about 4.7 k The de-emphasis may be achieved by an additional parallel capacitor. U2514B 60 k Figure 20. VREF 25 MPXOUT 12451 Figure 21. VREF ...
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... U2514B Functional Description FM The antenna signal is fed via a tuned RF-circuit to the integrated pre-stage which consists of a transistor grounded base circuit. To protect the prestage against overload, an automatic gain control (AGC) is included on the chip. Additional there is the possibility to extend the AGC control range by use of an external pin diode. For economic applications a hybrid-band pass filter can be used instead of a tuned RF-circuit ...
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... In the search mode (V CTRLA V S generated stop signal is available at CTRLB as low active signal. Symbol Load stg amb V ESD Symbol R thJA U2514B 12592 t STOP < 0.7 V), the internally Value Unit 12 V 750 125 C ) 125 2000 V Value Unit tbd. ...
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... U2514B Electrical Characteristics ) reference point Pins 4 or 16, unless otherwise specified S amb Parameters Test Conditions / Pins DC supply Supply voltage range Supply current Reference voltage CTRLA Input voltage Search mode Reception mode Mute function CTRLB Output voltage Reception mode Mono ...
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... 19kHz f CERES Pin 20 Pin 3 I FMRF g FMRF /v ) FMRF 0 v 0AGC Pin 10 I IFOUT / IFOUT FMRF c Pin 12 r FMIFIN U2514B Typ. Max. Unit = 1.7 V, Pin 25 CTRLA 35 mV rms 54 mV rms 66 mV rms 0 900 ...
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... U2514B OSCOUT VREF METER OUTR OUTL GND CTRLA CTRLB MPXOUT AM/FM VS GND ANT VTUNE FM VTUNE AM GND 12 (15) Preliminary Information Figure 28. Application circuit TELEFUNKEN Semiconductors Rev. A2, 04-Nov-96 ...
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... OSCOUT VREF METER OUTR OUTL GND CTRLA CTRLB MPXOUT AM/FM VS GND ANT VTUNE FM VTUNE AM GND TELEFUNKEN Semiconductors Rev. A2, 04-Nov-96 Preliminary Information Figure 29. Application circuit (upgraded) U2514B 13 (15) ...
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... U2514B Dimensions in mm Package: SSO28 12.7 12.9 0.30 0.80 10 (15) Preliminary Information 9.25 8.75 7.5 7.3 2.35 0.25 0.10 10.50 10.20 technical drawings according to DIN specifications TELEFUNKEN Semiconductors 0.25 Rev. A2, 04-Nov-96 ...
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... 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 TEMIC TELEFUNKEN microelectronic GmbH, P.O.B. 3535, D-74025 Heilbronn, Germany Telephone 7131 67 2831, Fax number 7131 67 2423 TELEFUNKEN Semiconductors Rev. A2, 04-Nov-96 Preliminary Information unauthorized use. U2514B 15 (15) ...