TCA440 GSG | Alldatasheet

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GSG 勁力半導体 Gunter Semiconductor GmbH TCA440 EDITION 09/00 Integrated AM Circuit for frequencies up to 30 MHz For inquiry please contact : China Tel: 0086-755-3200442 Fax: 0086-755-3355520 Hong Kong Tel : 00852-26190748 Fax: 00852-24948080 e-mail sales@gsg-asia.com

£ 5.1 19.4 – 0.2 0.47 –0.12 ‡ 0.51 £ 1.40 2.50 £ 1.27 3.5 16 15 14 13 12 11 10 1234 5 67 8 0.25 M 0.27+0.09 -0.07 7.55 6.4+0.2 -0.1 +1.0 - 0.5 £ 0.98 3.6+0.2 -0.1 09/00 1 TCA440 • DIP 16

Description

The TCA440/T is an efficient bipolar monolithic circuit to apply in battery - powered or mains - operated radio receivers up to 30 MHz. It contains controlled RF stage, mixer, separated oscillator and regulated multistage IF amplifier.

Features

  • symmetrical structured circuitry
  • controlled RF prestage
  • multiplicative balanced mixer, separated oscillator
  • very well implemented large - signal characteristic begins already from 4.5 V supply voltage
  • terminals for indicating instrument
  • controlled IF amplifier implementing 60 dB control range
  • external demodulator (diode)
  • wide range of supply voltage between 4.5 and 15 V

1 RF prestage, input 1 9 input IF control amplifier

2 RF prestage, input 2 10 indicator output IF control amplifier

3 RF control amplifier input 11 IF blocking

4 oscillator circuit pin 1 12 input lF amplifier 5 oscillator circuit pin 2 13 IF blocking 6 oscillator circuit pin 3 14 supply voltage

7 IF output 15 mixer output 1

8 ground 16 mixer output 2 Block Diagram OSCILLATOR VCC MIXERPRE- STAGE STABILISATION 1st IF STAGE 2nd IF STAGE 3rd IF STAGE 4th IF STAGE IF GAIN CONTROL IF FILTER 81 5 1 2 1 1 1 3 1 0 9 14163 HF - CIRCUIT VCC TUNING INDICATOR AF 3.5V3.5V VCC IF REQUIRED 56783412 910111213141516 9.9 – 0.1 0.421.27£ 0.7 0...8 0.19 +0.06 ‡ 0.3 3.9 – 0.1 6.0 – 0.2 0.25 M 0.15 1.35 – 0.10.15 £ 2.00 + 0.1 - 0.05 + 0.07 - 0.06 TCA440 T • SOP 16 2 09/00 TCA440/T

It contains several function units, which enable designing and assembling of efficient AM tuners. Caused by internal voltage stabilization characteristics are rather independent from supply voltage. The RF input signal reaches via a controllable and overdriving proof preselector stage a balanced mixer. By means of a RF - signal generated by a separated oscillator the input signal is transported into IF. Multiplicative mixing causes only few harmonic content. Gain control is carried out by means of two separated feedback control loops for preselector stage and IF amplifier. By these a loop bandwidth of approximately 100 dB is obtained. The control voltage of the IF - amplifier can be used to drive a moving - coil instrument (field strength indicator). The IF amplifier consists of 4 amplifier stages, the first, second and third can be controlled. The bandwidth of the IF amplifier is approximately 2 MHz and on that account sufficient for usual IF frequencies in the AM range of approximately 460 kHz. The symmetrical arrangement of the entire circuitry guarantees well oscillating. The bridge of the mixer avoids direct breakdown. Absolute Maximum Ratings min max unit Supply voltage V CC 4.5 15.0 V Junction temperature T j 150 °C Ambient operating temperature T a -15 80 °C Storage temperature T s -40 125 °C Total thermal resistance R thja 120 K/W Recommended Operational Conditions min max unit Supply voltage V CC 4.5 15 V Ambient operating temperature T a -10 70 °C 09/00 3 TCA440/T

refer to application examples, fi = 1 MHz, fosc = 1.455 kHz, flF = 455 kHz, VCC = 9 V, fm = 1 kHz, m = 0.8, voltages refer to ground, Ta = 20 to 25 °C, unless specified otherwise min typ max unit Current and voltage supply (no RF signal) Supply voltage V 14-8 4.5 9 15 V Current consumption V14-8 = 4.5 V I 14 7m A V14-8 = 9 V I 14 10.5 16 mA V14-8= 15 V I 14 12 mA Entire receiver RF level variation with ∆VNF = 6 dB ∆VRF 65 dB with ∆VNF = 10 dB ∆VRF 80 dB NF output voltages (symmetrically measured at 1-2) V iHF = 20 µV, m = 0.8 V NF(rms) 60 140 mV ViHF = 1 mV, m = 0.8 V NF(rms) 260 mV ViHF = 500 mV, m = 0.8 V NF(rms) 100 350 560 mV ViHF = 20 µV, m = 0.3 V NF(rms) 50 mV ViHF = 1 mV, m = 0.3 V NF(rms) 100 mV ViHF = 500 mV, m = 0.3 V NF(rms) 130 mV RF input sensitivity measured at 60 Ω , m = 0.3, RG = 540 Ω signal-to-noise ratio S + N/N = 6 dB V iRF 1µ V S + N/N = 26 dB V iRF 7µ V S + N/N = 58 dB V iRF 1m V Maximum RF input voltage V iHF 1.5 V (THD = 10 %) Total harmonic distortion VHF = 500 mV THD 4.5 10 % VHF = 30 mV THD 2.8 8 % RF part Input frequency range f iHF 0 50 MHz Output frequency f|F = fosc -f iHF fIF 455 kHz Control range ∆GV 38 dB 4 09/00 TCA440/T

V iHFmax Zi 2 II 5 k Ω IIpF ViHFmin Zi 2.2 II 1.5 k Ω IIpF balanced coupling ViHFmax Zi 4.5 k Ω ViHFmin Zi 4.5 II 1.5 k Ω IIpF Mixer output impedance (pin 15 or 16) Z o 250 II 4.5 k Ω IIpF Steepness S HF 28 mS IF part Input frequency range f ilF 0 2 MHz Control range ∆GV 62 dB filF = 455 kHz, ∆VNF = 10 dB Start of control V ctrlF 140 µV (∆ViIF / ∆VNF = 10 dB / 3 dB) maximum IF input voltage V ilFmax 200 mV (THDNF = 10 %) NF output voltage applied to 60 Ω VZF = 30 µV V NF(rms) 50 mV VZF = 3 mV V NF(rms) 200 mV VZF = 3 mV; m = 0.3 V NF(rms) 70 mV IF input impedance (unbanlanced coupling) Z ilF 3 II 3 k Ω llpF IF output impedance Z O 200 II 8 k Ω IIpF (pin 7) Indication instrument Recommended indication instruments: 500 µA (Ri = 800 Ω ) 300 µA (Ri = 1.5 kΩ ) For indication a voltage source of 600 m V(EMF) and an internal source impedance of 400 Ω is available. TCA440/T

S ( mS ) Vosc ( mV )10 1 10 2 10 3 TCA 440 / T S = f ( Vosc ) S = I15 /V1;2 VCC = 9V; 5V fIF = 455 kHz fi = 1 MHz;V3 = 0V V10 ( mV ) 800

100 V9 ( mV )200 300 400 500 800

V 10 = f ( V9 ) VCC = parameter R 6 = 1.5 kW V3 ( mV ) VgoHF ( mV )10 2 10 3 10 4 100 200 300 400 10 6 500 V3 ( mV ) VgoHF ( mV )10 2 10 3 10 4 100 200 300 400 10 6 500 TCA 440 / T V3 = f ( VgoHF ) VCC = parameter fi = 1 MHz 9V TCA 440 / T V3 = f ( VgoHF ) VCC = parameter fi = 1 MHz 6 09/00 TCA440/T

ViIF ( mV )10 1 10 2 10 4 10 710 3 VAF ( mV ) 100 200 300 400 TCA 440 / T VAF = f ( ViIF ) V3 = parameter fIF = 455 kHz m = 0.8; fm = 1 kHz ViIF ( mV )10 2 10 3 10 4 10 6

8 THD ( % )

THD = f ( ViIF ) fIF = 455 kHz m = 0.8; fm = 1 kHz V10 (m V) VgoHF (mV)10 2 10 3 10 4 100 200 300 400 10 6 500 10 0 10 1 TCA 440 / T V10 = f ( VgoHF ) VCC = parameter fi = 1 MHz ViIF (mV)10 3 10 4 10 5 10 610 1 10 2 200 400 600 800V9 (m V) TCA 440 / T V9 = f ( ViIF ) VCC = parameter fIF = 455 kHz 09/00 7 TCA440/T

VCC (V) ICC ( mA) 5 6 7 8 9 1 01 11 2 1 5 TCA 440 / T ICC = f ( VCC ) VgoHF = 0 VgoHF (mV)10 0 10 1 10 4 10 810 2 10 3 10 5 VAF (mV) 100 200 300 400 9V TCA 440 / T fIF = 455 kHz m = 0.8; fm = 1 kHz VAF = f ( VgoHF ) VCC = parameter VAF (m V) 100 200 300 400 VgoHF (mV)10 310 0 10 2 VAF = f ( VgoHF ) VCC = parameter fIF = 455 kHz fm = 1 kHz; m = 0.8 10 1 TCA 440 / T VCC = parameter fIF = 455 kHz THD = f ( VogHF ) fm = 1 kHz; m = 0.8 VgoHF (mV)10 0 10 1 10 2 10 3 10 4 10 6 8 09/00 TCA440/T

Pgmax (mW) 10 -5 10-3 10 0 10 1 10 -9 10 -7 ViIF(mV)10 2 10 410 1 10 610 3 V10 (mV) 100 200 300 400 10 -1 80S+N (dB) N 1k W 4.7 kW 30 W 250 W TCA 440 / T R g = parameter VCC = 9 V fi = 1 MHz fm = 1 kHz; m = 0.3 S+N N = f (Pgmax ) Pgmax = V2go 4Rg 500 TCA 440 / T fIF = 455 kHz m = 0.8; fm = 1 kHz V10 = f ( ViIF ) VCC = parameter 200 400 600 DHFgain (dB) 01 02 0 3 0 5 0 V3 (m V) 200 400 600 800 TCA 440 / T VCC = parameter V15 = 50 mV const. fiHF = 1 MHz DIFgain (dB) 01 0 2 0 3 0 5 0 4040 60 V9 (m V) 800

5 V 9 V

VCC = parameter fiIF = 455 kHz DIFgain = f ( V9 ) fm = 1 kHz; m = 0.8 VAF = 200 mV const. DHFgain = f ( V3 ) 09/00 9 TCA440/T

V9 (mV) 0 200 400 800 600 V7 (m V) 200 400 600 800 TCA 440 / T ViIF = 100 mV fi = 455 kHz VCC = parameter V7 = f ( V9 ) 9 V 5 V V3 (mV) 0 100 200 400 300

30 V15 (m V)

VgoHF = 700 mV fi = 1 MHz V15 = f ( V3 ) VCC = parameter 10 09/00 TCA440/T VgoHF TCA 440 3 8 11 13 9 15121016 C13 330 Fi1 W1a W1b C12 100n R 1.8k C1 20m 8.2k 100n C3 100n 4.7m S1 39k 100 W Fi3 Rp3 C5 1.5n x A D1 12k 3.3n 4.7m VAF VIF VCC C14 10n C10 4.7m C11 100n 1.5n Rp2 Fi2C9 10n a b 1.5k S5C12 1.5n Fi4 W1W2 C13 10n 25W £ RG £ 100W

  • TCA 440

The PCB is to arrange such that there are maximum ground lines (ground area) voltage supply has to be blocked to ground by a capacitor of 10...100 nF in order to avoid distortions. Blocking should be as close as possible to the circuit. The RF circuit has to layout such that 150 mV (rms) oscillator voltage are applied to pin 5. Symmetrically applying an external oscillator is possible to pin 4 or pin 5. The unused input must be connected to ground via capacitor and in the same time be connected to supply voltage at pin 6. It is recommendable to profide off earth connections 1 and 3, because in this way common - mode interferences more effectively can be suppessed. Single - sided capacitive control of pin 1 and 2 is possible, the unused input must be connected to ground via capacitor. Mixer outputs 15 and 16 can be used equivalently. Load resistances of the mixer (IF selection) at pin 15 respectively pin 16 should run to approximately 7 kΩ . To avoid saturation of the multiplier the maximum peak voltage occuring during operation should not exceed the level (V CC - 3 V) IF response to voltage from pin 15 respectively pin 16 to pin 12 should be approximately - 18 dB that the control characteristics of IF - and RF - part optimally be matched. Peak voltage at pin 7 occuring during operation should not exceed 2 V that the IF output does not go into saturation. All the RF bypass capacitors should amount to 100 nF. Sufficient decoupling of wavemagnet and oscillator coil is to be taken into consideration. All components and parts must be carefully proportioned in order to obtain optimum wise characteristics. Wavemagnets applied should so much mass as possible. The transformation ratio of the input circuitry should run to 10...12. In order to improve RF response characteristic a RF preselector can be additionally preceded or the wavemagnet can be tighty coupled by means of an emitter follower impedance transformer. Improvement of signal - to - noise ratio at average input voltages can be obtained by delayed control of the RF VgoHF TCA 440 T 3 8 11 13 9 15121016 330p –2.5% W1a 100n +50% -20% R 1.8k –2% 20m –20% 8.2k –5% 100n +50% -20% 4.7m –50% 100 –2% W Rp3 1.5n –2.5% x A 12k –2% 3.3n +50% -20% 4.7m –50% VAF +VCC 1.5n –2.5% Rp2 W 10n +50% -20% W 1.5k –2% 100n +50% -20% 25W £ RG £ 100W 47m –50% 100n +50% -20% 39k –2%

  • TCA440 T Copying is generally permitted, indicating the source. However, our consent must be obtained in all cases. MEGAXESS reserves the right to make changes in specifications at any time and without notice. The information and suggestions are given without obligation and cannot give rise to any liability, they do not indicate the availability of the components mentioned. The information included herein is believed to be accurate and reliable. However, MEGAXESS assumes no responsibility for its use; nor for any infringements of patents or of other rights of third parties which may result from its use. Megaxess GmbH Deutschland • POB 1370 • 15236 Frankfurt(Oder) • Germany Phone +49 335 2005 • FAX +49 335 3251 • Internet http://www. megaxess.de TCA440/T 11