Video IF with FPLL, MAC State TDA 6050-5 Bipolar IC Features ● Active multistandard video IF with FPLL demodulator ● 12-MHz bandwidth ● MAC state P-DIP-20 Type Ordering Code Package TDA 6050-5 Q67000-A5123 P-DIP-20 Circuit Description The IF circuit consists of a four-stage capacitively coupled and symmetrically designed controlled amplifier and a real synchronous demodulator with a FPLL-carrier regeneration. Two IF inputs can be selected for applications with different SAWs. The main performance of the device is the very low differential phase DP and gain DG combined with an excellent intermodulation ratio. The positive video output is used to derive the IF and tuner control voltage. The AGC threshold is set by means of a potentiometer. Dependent on the modulation polarity the video signal and the AGC are switched over. MAC state can be selected by an additional signal. Application Multistandard TV/VTR and cable converters with mono or stereo applications. Semiconductor Group 63 06.94 TDA 6050-5 Pin Functions Pin No. Function 1 IF input 1a 2 IF input 1b 3 IF switch 4 Tuner AGC output 5 Tuner AGC threshold 6 Main AGC-time constant 7 Mean value AGC-time constant 8 Positive/negative modulation switch 9 N.C. 10 FPLL-VCO (2 × video carrier) 11 FPLL-VCO (2 × video carrier) 12 N.C. 13 FPLL-loop filter 14 FPLL-loop reference 15 Video output 16 MAC-standard switch 17 + VS supply voltage 18 Ground 19 IF input 2a 20 IF input 2b Semiconductor Group 64 TDA 6050-5 Block Diagram Semiconductor Group 65 TDA 6050-5 Absolute Maximum Ratings TA = 0 to 70 ˚C Parameter Symbol Supply voltage V17 Junction temperature Tj Storage temperature Tstg Thermal resistance (system-air) Rth SA Limit Values Unit min. max. 0 13.2 V 150 ˚C 125 ˚C 60 K/W – 40 Operating Range Supply voltage V17 10.8 13.2 V Supply voltage delayed tuner AGC V5 0.8 12 V IF-frequency range fIF 12 80 MHz Ambient temperature during operation TA – 10 85 ˚C Semiconductor Group 66 TDA 6050-5 DC Characteristics TA = 0 to 85 ˚C; VS = 12 V Parameter Symbol Limit Values min. typ. Unit Test Condition max. Total current consumption – I17 IF input V1, V2, V19, V20 5.7 6.0 6.3 V IF switch H or open = IF 1 L = IF 2 ± I3 120 2.0 0.0 210 260 5.0 1.0 µA V V V3 = 0 V, 5 V Standard switch ± I8 ± I16 V8, V16 V8, V16 120 210 260 µA V8, V16 = 0 V, 5 V 5 1 V V H level L level V3 V3 51 mA 2 0 V8 = H V16 = H V8 = L V16 = H V8 = H V16 = L B/G standard L standard MAC standard AGC Voltage Min. AGC Max. AGC V6 V6 0.0 0.1 2.8 0.5 4.0 V V V1-2, V19-20 = 0 Vrms V1-2, V19-20 = 150 mVrms 1.9 23 140 mA µA V6 = 2.0 V, V15 ≤ 3.2 V V6 = 2.0 V, V15 ≥ 4.2 V mA µA µA V6 = 2.0 V, V15 ≥ 7.0 V V6 = 2.0 V, 5.2 V < V15 < 6.5 V V6 = 2.0 V, V15 < 3.9 V V V V1-2, V19-20 = 10 mVrms V1-2, V19-20 = 0 Vrms AGC-Time Constant with Neg. Modulation Charge current Discharge current Charge/discharge ratio I6 – I6 ∆I6 1.1 13 55 1.4 18 82 AGC-Time Constant with Pos. Modulation Charge current Discharge current Discharge current (Average control) Charge/discharge ratio I6 – I6 – I6 1.1 0.15 70 1.4 0.25 85 1.9 0.35 120 ∆I6 4000 5600 9000 Mean Value Generation with Pos. Modulation White level Zero carrier level Semiconductor Group V7 V7 4.9 3.3 5.7 3.7 6.5 4.1 67 TDA 6050-5 DC-Characteristics (cont’d) Parameter Symbol Unit Test Condition min. typ. max. I5 V6 V6 4.4 650 2.8 0.3 4.7 850 3.1 0.4 5.0 1050 3.4 0.5 V µA V V R5-18 → ∞ V5 = 0 R5-18 = 10 kΩ R5-18 = 10 Ω – I4 10 18 30 mA – I4 0 10 µA V4 = 0.5 V17, V5 = 0.75 V V1-2, V19-20 = 100 mVrms V4 = 0.5 V17, V5 = 4 V V1-2, V19-20 = 10 mVrms 3 3.8 4.1 V V 2.5 3.3 mA Tuner AGC threshold V5 Tuner AGC current max. 1 ms Limit Values FPLL VCO-tank circuit Loop reference V10, V11 V14 3.4 Video Output Negative Modulation Output current – I15 1.9 Sync pulse level I15 V15 4.0 3.3 3.7 4.1 mA V Zero carrier level V15 6.3 7.0 7.7 V V15 = 5.0 V, V1-2, V19-20 = 10 mVrms, no modulation to ground via R = 500 Ω V1-2, V19-20 = 10 mVrms, no modulation V6 = 3 V, V1-2, V19-20 = 0 Vrms Video Output Positive Modulation (L standard) White level Zero carrier level Semiconductor Group V15 V15 6.0 3.3 6.7 3.7 7.4 4.1 68 V V1-2, V19-20 = 10 mVrms, V no modulation V6 = 3 V, V1-2, V19-20 = 0 Vrms TDA 6050-5 AC Characteristics TA = 0 to 85 ˚C; VS = 12 V Parameter Symbol Limit Values min. typ. Unit Test Condition max. µVrms Min. IF-input voltage (min. AGC) Max. IF-input voltage (max. AGC) V1-2, V19-20 45 V1-2, V19-20 90 100 mVrms IF-control range ∆V 63 70 dB Video output V15 2.7 3.0 3.3 Vpp V1-2, V19-20 = 10 mVrms R15-18 = 1.5 kΩ Changes via control range Changes via supply voltage range ∆V15 3 6 % Control range = 55 dB ∆V15 2 4 % 10.8 V < V17 < 13.2 V Semiconductor Group 69 60 TDA 6050-5 AC Characteristics (cont’d) Parameter Symbol Limit Values min. typ. max. Unit Test Condition Design Notes IF-input resistance symmetrical R1-2, R19-20 1.5 2 2.5 kΩ IF-input capacitance symmetrical C1-2, C19-20 2 5 pF VCO voltage V10-11 700 Video output resistance R 15 70 Video noise voltage ratio S/N 60 Video bandwidth B – 3 dB Differential gain Differential phase DG DP mVpp 125 Ω dB 12 CCIR Rec 567-1 MHz 5 2.5 o V1-2, V19-20 = 10 mVrms V1-2, V19-20 = 10 mVrms % a IM Intermodulation ratio f IM = 1.07 MHz = f TT – f FT sound porch = – 20 dB 60 dB V1-2, V19-20 = 10 mVrms S/N 54 dB V1-2, V19-20 = 10 mVrms, Intercarrier noise CCIR 468 FuBK, m = 100 % sound porch = – 13 dB Varactor diode Varactor diode Semiconductor Group C 10, 11 C 10, 11 15 7 70 pF pF V13 = 2.5 V V13 = 4.9 V TDA 6050-5 Test Circuit Semiconductor Group 71 TDA 6050-5 Application Circuit Video Semiconductor Group 72