FS: 04/93 Page 1 SIEMENS AG IC-SPECIFICATION TDA 4321 XS ––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– Table of Contents FM-IF IC with counter output, analog STS, field strength indicator, noise detector and mute setting Table of Contents Page 1 Functional Description, Application Page 2 Circuit Description Page 3 Block Diagramm Page 4 Pin Assignment Page 5 Package Outline Page 6 Absolute Maximum Ratings Page 7 Operational Range Page 8 AC / DC Characteristics Tamb = +25°C Page 9 ... 10 Test Circuit Page 11 Application Circuit Page 12 Diagrams Page 13 ...16 This specification replaces the previous editions DOK-Nr. date V66047-S1665-B100-V1 24.7.98 DOK-Nr. date The reproduction, transmission or use of this document or its contents is not permitted without express written authority. Offenders will be liable for damages. All rights, including rights created by patent grant or registration of a utility model or design, are reserved. HL DOK V66047-S1665-B100-G1 5.10.98 FS: 04/93 Page 2 SIEMENS AG IC-SPECIFICATION TDA 4321 XS ––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– Functional Description, Application The FM-IF-Demodulator TDA 4321 XS has been developed especially for car radio applications. The on-chip multipath identification circuit activates an interference suppression circuit in case of multipath interferences. The TDA 4321 XS includes an: - 7stage limiter amplifier - Coincidence demodulator - Counter output with request input - Field strength output - Analog Multipath identification circuit - Adjustable muting depth (with full muting ≥80dB) - STS function. This device is ESD protected. ––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– The reproduction, transmission or use of this document or its contents is not permitted without express written authority. Offenders will be liable for damages. All rights, including rights created by patent grant or registration of a utility model or design, are reserved. HL DOK V66047-S1665-B100-G1 5.10.98 FS: 04/93 Page 3 SIEMENS AG IC-SPECIFICATION TDA 4321 XS ––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– Circuit Description The IC includes a 7 stage capacitive coupled-limiter amplifier with coincidence demodulator and AF output. The AF output signal can be continuously attenuated to decrease the noise. In case of multipath interferences, the TDA 4321 XS includes an identification circuitry with analog output. There is a field strength output (with min. 76 dB dynamic range, typ. ±1 dB nonlinearity and typ. ±3 dB temperature drift), an IF-Counter output and an adjustable muting (with full muting ≥80dB). An STS output with adjustable threshold and stop window is available. ––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– .The reproduction, transmission or use of this document or its contents is not permitted without express written authority. Offenders will be liable for damages. All rights, including rights created by patent grant or registration of a utility model or design, are reserved HL DOK V66047-S1665-B100-G1 5.10.98 SIEMENS AG TDA 4321 XS IC-SPECIFICATION –––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– Block Diagram Field strength UiIF 1 2 6 7 +VS IFCounter 9 15 STS out 13 VRef 8 10 VRef STS 20 3 4 Multipath detector 5 19 17 Muteinput MPX 18 Mutedepth 14 12 11 STS threshold The reproduction, transmission or use of this document or its contents is not permitted without express written authority. Offenders will be liable for damages. All rights, including rights created by patent grant or registration of a utility model or design, are reserved. HL DOK V66047-S1665-B100-G1 5.10.98 FS: 04/93 Page 5 SIEMENS AG IC-SPECIFICATION TDA 4321 XS ––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– Pin Assignment 1 IF input 2 IF input bias 3 Multipath identification input 4 Rectifier time constant 5 Multipath identification output 6 Field strength adjust 7 Field strength output 8 Reference voltage output 9 Supply voltage 10 Demodulator circuit 11 Demodulator circuit 12 STS threshold 13 STS output 14 STS filter time constant and stop window width 15 IF-Counter output 16 NC 17 MPX output 18 Mute depth 19 Mute input 20 Ground ––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– The reproduction, transmission or use of this document or its contents is not permitted without express written authority. Offenders will be liable for damages. All rights, including rights created by patent grant or registration of a utility model or design, are reserved. HL DOK V66047-S1665-B100-G1 5.10.98 FS: 04/93 Page 6 SIEMENS AG IC-SPECIFICATION TDA 4321 XS ––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– Package Outline Plastic-Package TSSO-P 20-1 ––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– The reproduction, transmission or use of this document or its contents is not permitted without express written authority. Offenders will be liable for damages. All rights, including rights created by patent grant or registration of a utility model or design, are reserved. HL DOK V66047-S1665-B100-G1 5.10.98 FS: 04/93 Page 7 SIEMENS AG IC-SPECIFICATION TDA 4321 XS ––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– Absolute Maximum Ratings The maximal ratings may not be exceeded under any circumstances, not even momentarily and individually, as permanent damage to the IC will result. # Max. Ratings for ambient temperature T amb -40 °C to +85 °C Symbol Min Units +13.5 V 1 Supply voltage VS 2 Junction temperature Tj +150 °C 3 Storage temperature Ts +125 °C 4 ESD voltage, HBM +4 kV 115 K/W VESD 0 Max -4 Remarks (1.5 kΩ ,100pF) 5 Thermal Resistance Rthsa ––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– The reproduction, transmission or use of this document or its contents is not permitted without express written authority. Offenders will be liable for damages. All rights, including rights created by patent grant or registration of a utility model or design, are reserved. HL DOK V66047-S1665-B100-G1 5.10.98 FS: 04/93 Page 8 SIEMENS AG IC-SPECIFICATION TDA 4321 XS ––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– Operational Range Within the operational range the IC operates as described in the circuit description. The AC / DC characteristic limits are not guaranteed. # Parameter 1 Supply voltage 2 Ambient temperature Symbol Min Max Units VS +7.5 +11 V Tamb -40 +85 °C Remarks ––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– The reproduction, transmission or use of this document or its contents is not permitted without express written authority. Offenders will be liable for damages. All rights, including rights created by patent grant or registration of a utility model or design, are reserved. HL DOK V66047-S1665-B100-G1 5.10.98 FS: 04/93 Page 9 SIEMENS AG IC-SPECIFICATION TDA 4321 XS ––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– AC / DC Characteristics AC / DC characteristics involve the spread of values guaranteed within the specified supply voltage and ambient temperature range. Typical characteristics are the median of the production. # Parameter Symbol Test Conditions Test Circuit Min Typ Max Units 33 41 mA 5.1 V ±3 50 dB dB dB pF kΩ Measuring condition: VS= 10 V; fiIF=10.7 MHz; ∆f= 75 kHz; fmod= 1 kHz;ViIF =10 mVrms; Tamb= +25°C 1 Current consumption I9 V19=4.8V;V18=4V 1 2 Stabilized voltage V8 V19=4.8V;V18=4V 1 4.5 4.8 3 Field strength output -dynamic range -nonlinearity -temperature drift -Load capacitance -Load resistance V7 V19=4.8V;V18=4V D1 D2 D3 74 80 ±1 1 V7 V1rms=200mV 1 5 5.4 5.8 V V7 V1rms=1mV 1 2.3 2.7 3.1 V V7 V1rms=0mV 1 0 1.1 V 20 30 µVrms 550 640 mVrms 4 Input voltage for limiter threshold V1 V17=- 3dB 1 5 AF-output voltage V17 V19=4.8V;V18=4V 1 6 AF-output voltage V17 V19=4.8V;V18=4V R 10-11=2k;∆f= 22,5 kHz Lab 7 Total harmonic distoriton THD17 V19=4.8V;V18=4V 1 8 AM-suppression aAM m=80 % 1 60 dB m=30 % 1 70 dB 460 80 mVrms 0.8 % 9 Signal-to-noise ratio a S/N V19=4.8V;V18=4V 1 76 84 dB 10 Counter-output voltage V15 C L=5pF;Ri15=1.5k 1 50 80 mVrms ––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– The reproduction, transmission or use of this document or its contents is not permitted without express written authority. Offenders will be liable for damages. All rights, including rights created by patent grant or registration of a utility model or design, are reserved. HL DOK V66047-S1665-B100-G1 5.10.98 FS: 04/93 Page 10 SIEMENS AG IC-SPECIFICATION TDA 4321 XS ––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– AC / DC Characteristics AC / DC characteristics involve the spread of values guaranteed within the specified supply voltage and ambient temperature range. Typical characteristics are the median of the production. # Parameter Symbol Test Conditions Test Circuit Min Typ Max Units Measuring condition: VS= 10 V; fiIF=10.7 MHz; ∆f= 75 kHz; fmod= 1 kHz;ViIF =10 mVrms; Tamb= +25°C 14 Attack current I4*) V3AC=1Vpp; Vm=5.0V 1 700 900 1100 µA 15 Recovery current I4*) V3AC=0V; Vm=3.6V 1 -6 -9 -12 µA 16 Start voltage V5Def V3AC=0V 1 4.4 4.7 17 Detector characteristic V5 V3 =100mVpp 1 V5Def-3.5V V5Def-3V 18 Detector characteristic V5 V3 =350mVpp 1 19 AF mute V19=4.8V ;V18=4.8V D4 V19=0V ;V18=4.8V D4 -2 V19=0V ;V18=2.4V D4 32 D4 80 dB D4 80 dB V aAF V19=4.8V ;V18≤1.0V V19=0V ;V18≤ 1.0V V V5Def-2.5V 500 0 20 Voltage for mute off V19 1 0.5 21 Voltage for mute on V19 1 0 22 Search tuning stop window fSTS13 R 8-14 = 56kΩ 23 Search tuning stop offset fSToffs 24 Search tuning stop threshold FM ViST1 ViST1 38 V mV dB 2 dB 44 dB 0.1 V 1 ±25 kHz R 8-14 = 56kΩ; THD = min 1 ±10 kHz V12=open V12=2.4V 1 1 200 2.6 µVrms mVrms 50 0.65 100 1.3 *) Integrator currents are measured between the output pin (- Pole of the measurement equipment) and a voltage source Vm (+ Pole) ––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– The reproduction, transmission or use of this document or its contents is not permitted without express written authority. Offenders will be liable for damages. All rights, including rights created by patent grant or registration of a utility model or design, are reserved. HL DOK V66047-S1665-B100-G1 5.10.98 SIEMENS AG TDA 4321 XS IC-SPECIFICATION –––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– Test Circuit Vin 56 V3 V4 V5 V7 V6 V8 Vs 100k 300 47n 47n 100n 47n 330 1 100n 18k 56k 2 3 4 6 5 8 7 9 10 120p 3k6 20 19 18 17 16 15 14 13 10n V19 V18 11 100n N.C. 12 100n V12 V17 56k 100k V15 V13 The reproduction, transmission or use of this document or its contents is not permitted without express written authority. Offenders will be liable for damages. All rights, including rights created by patent grant or registration of a utility model or design, are reserved. HL DOK V66047-S1665-B100-G1 5.10.98 SIEMENS AG TDA 4321 XS IC-SPECIFICATION –––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– Application Circuit The reproduction, transmission or use of this document or its contents is not permitted without express written authority. Offenders will be liable for damages. All rights, including rights created by patent grant or registration of a utility model or design, are reserved. HL DOK V66047-S1665-B100-G1 5.10.98 FS: 04/93 Page 13 SIEMENS AG IC-SPECIFICATION TDA 4321 XS ––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– Diagrams D1 VF Characteristic UF (V) 5 2.5 -80 M3 -60 -40 M1 -20 0 UiIF (dBm) M4 M2 VF - Dynamic MVFmin MVFmax VF - Dynamic :The dynamic range of VF voltage is determined by the test points M1 through M4 as follows: M1: test point (at ViIF= M2: test point (at ViIF= M3: test point (at ViIF= M4: test point (at ViIF= -60 dBm) supplies VF (M1) -20 dBm) supplies VF (M2) -90 dBm) supplies VF (M3) +5 dBm) supplies VF (M4) Hence follows : UF (M4) - UF (M2) MVFmax:= - 20 dBm+––––––––––––––––– × 40 dB UF (M2) - UF (M1) UF (M1) - UF (M3) MVFmin:= - 60 dBm - ––––––––––––––––– × 40 dB UF (M2) - UF (M1) VF - Dynamic = MVFmax - MVFmin ––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– The reproduction, transmission or use of this document or its contents is not permitted without express written authority. Offenders will be liable for damages. All rights, including rights created by patent grant or registration of a utility model or design, are reserved. HL DOK V66047-S1665-B100-G1 5.10.98 FS: 04/93 Page 14 SIEMENS AG IC-SPECIFICATION TDA 4321 XS ––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– Diagrams VF (V) VF Characteristic D2 5 2.5 ∆ VF VFmax VFmin ∆ -80 -60 ViIF -40 M1 -20 0 UiIF (dBm) M2 Test points to determine VF linearity VF - Linearity:is determined at 25 °C Slope VF (M2) - VF (M1) : m = –––––––––––––––––– 40 dB The tolerance range of the VF - linearity is determined by two parallel lines: VFmax = VF (M1) + m (M + 60 dB+ 1dB) VFmin = VF (M1) + m (M + 60 dB - 1dB) The VF values within the VF dynamic range (MVFmin≤M≤MVFmax) must be inside the predetermined tolerance range: VFmin ≤ VF ( M ) ≤ VFmax ––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– The reproduction, transmission or use of this document or its contents is not permitted without express written authority. Offenders will be liable for damages. All rights, including rights created by patent grant or registration of a utility model or design, are reserved. HL DOK V66047-S1665-B100-G1 5.10.98 FS: 04/93 Page 15 SIEMENS AG IC-SPECIFICATION TDA 4321 XS ––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– Diagrams VF Characteristic VF (V) D3 5 2.5 ∆ VF VFmax VFmin ∆ -80 -60 ViIF -40 M1 -20 0 UiIF (dBm) M2 Test points to determine VF temperature drift VF -Temperatur - Drift : It is determined within -40 bis +85 °C Slope UF (M2) - UF (M1) : m = –––––––––––––––––– 40 dB (at 25 °C ) The tolerance range of the VF temperature drift is determined by two parallel lines: VFmax = VF (M1) + m (M + 60 dB+ 3dB) VFmin = VF (M1) + m (M + 60 dB - 3dB) The VF values for temperatures between -40 to +85 °C within the VF dynamic range (MVFmin≤VF≤MVFmax) must be inside the predetermined tolerance field: VFmin≤ VF ( M ) ≤ VFmax ––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– The reproduction, transmission or use of this document or its contents is not permitted without express written authority. Offenders will be liable for damages. All rights, including rights created by patent grant or registration of a utility model or design, are reserved. HL DOK V66047-S1665-B100-G1 5.10.98 FS: 04/93 Page 16 SIEMENS AG IC-SPECIFICATION TDA 4321 XS ––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– Diagrams 0dB Muting Characteristic D4 VqAF (dB) 20dB typ 38dB 60dB ≥ 80dB 2.4V V17(V);V18=0 V 4.7 V Diagram of Mute Characteristic ––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– The reproduction, transmission or use of this document or its contents is not permitted without express written authority. Offenders will be liable for damages. All rights, including rights created by patent grant or registration of a utility model or design, are reserved. HL DOK V66047-S1665-B100-G1 5.10.98