HA11560FP

ADE-207-126A (Z) HA11560FP/T VCR/VDP RF Modulator Rev. 1 Dec. 1993 T his chip is designed for ap p l i c ation as an RF modulator in VCRs and VDPs. A new type RF o s c i l l ator provides superior harm o n i c characteristics. Features • Superior harmonic characteristics allow easy pattern design. • Sharp white chip characteristics with no distortion • The use of miniature surface mount packaging allows substrate miniaturization (TSOP). Functions • • • • • • • Video modulator RF carrier oscillator White clip Channel switch Audio carrier converter ANT switch driver Carrier off switch Ordering Information Type No. HA11560FP HA11560T Package 16 pin plastic SOP 16pin plastic TSOP HA11560FP/T Block Diagram R4 Video in VR 1 330 + 16 Video clamp C10 1µ 15 C9 1500 p 14 ANT SW 13 ANT SW VCC SAW resonator R3 10 k 12 C8 C7 11 C6 10 9 Note 1 Carrier off SW RF carrier oscillator White clip HA11560 RF amp Video modulator RF out BPF R5 Audio carrier modulator 1 C1 10 p R1 C3 15 p T1 Note 2 2 3 C2 0.22 µ + FM modulator 4 5 6 R2 330 7 Audio amp Channel SW 8 + VCC GND Channel SW Audio in C4 10 µ C5 0.01 µ External Components (Notes 1 and 2) No. Component 1 2 SAW resonator 4.5-MHz tank coil Model KAR91CS (Japanese specifications) 291ACS–4060Z 62-pF tuning capacitor on-chip 369SN–1458Z External tuning capacitor Manufacturer Kyocera, Inc. Toko, Inc. Remarks KAR61CT (U. S. specifications) Use 369SN–1458Z for greater tuning capacitance. Note this also decreases audio modulation factor. 2 HA11560FP/T Pin Functions Pin No. 1 2 3 Symbol GND AUDIO RF OUT RF OSCILLATOR BIAS FM MOD COIL FM MOD COIL AUDIO IN CHANNEL SW VCC SAW.R LOW CHANNEL SAW.R HIGH CHANNEL SAW.R COMMON DP Adj. Function GND Audio RF signal output pin RF oscillator voltage control pin Voltage Pin GND 3.2 V (3.1 V) Output Level = 85 dBµV RF oscillator active state Reference voltage pin Swing Level = . 1.0 Vp-p Remarks 4 5 6 7 8 9 10 11 12 FM modulator tank coil connector pin FM modulator tank coil connector pin Audio signal input pin RF oscillation frequency channel switch VCC SAW resonator connector pin (low ch) SAW resonator connector pin (high ch) SAW resonator connector pin (common) Video differential phase and harmonic level adjust pin RF switch driver and RF oscillator switch pin RF switch driver drive pin Video RF signal output pin Video signal input pin 4.1 V 4.1 V 0V 2.8 V (when open) 5V 3.7 V 3.7 V 3.2 V 2.6 V . Pin 9 output (when open) Swing Level = . 80 mVp-p . Good oscillating stability smaller capacitance value 0 V (when open) Maximum output current = 30 mA Note: Output level = 91.5 dBµV 13 14 15 16 CARRIER OFF SW ANT SW DRIVER VIDEO RF OUT VIDEO IN 0 to 5 V 0 to 3.6 V 3.1 V 1.6 V Note: Channel JPN1 JPN2 US3 US4 Carrier frequency 91.25 MHz 97.25 MHz 61.25 MHz 67.25 MHz 3 4 15 60 k 1k 300 50 k SW 60 k 80 k 3k 14 13 9 12 11 10 Video modulator RF oscillator 1k 10 k 2k 200 Audio carrier conversion 300 Audio input amplifier 100 5k 100 k 3 4 5 6 7 8 HA11560FP/T 16 White clip circuit HA11560 1 2 HA11560FP/T Block Operation Descriptions The following describes the operation of each block and external circuits. Video Clamp The video clamp circuit employs a sync peak value clamp. Input impedance is at a level of approximately 30 kΩ to reduce compression of the sync pulse. Note that sag is generated in the sync pulse when a capacitor of 0.47 µF or lower is used for C10 at pin 16. White Clip Circuit The white clip level is set to 92.5%. A circuit that produces a sharp white clip is used in order to produce high linearity characteristics for the video. Increasing the white clip frequency characteristic by another 5 MHz eliminates video carrier cutoff by the chroma signal and prevents deterioration of audio buzz characteristics. White clip level HA11560 white clip characteristics Video in + 16 C10 1 µF White clip circuit Normal white clip characteristics Figure 1 Video Input Circuit Figure 2 White Clip Characteristics 5 HA11560FP/T RF Oscillator/Channel Switch A new type RF oscillator is employed to reduce RF harmonics to a level that is dramatically lower than previous available Hitachi products. Note that using a capacitor lower than 0.22 µF at pin 3 causes an increase in sync pulse sag. The input resistance at pin 11, which is the oscillator input pin, is 3 kΩ. Pins 9 and 10 are oscillator output pins, and are NPN transistor emitter-follower types. The oscillator frequency is selectable by switching the pin 7 channel switch between SAW resonator low channel and high channel. When the channel switch is open, oscillation output is performed from pin 9, while grounding the switch causes output from pin 10. The switching voltage of the channel switch is approximately 2.1 V. When the channel switch is grounded, a current of 30 µA flows through pin 7, which is sufficient to drive an electronic switch. Antenna Switch The antenna switch links the drive circuit that switches the RF switch on and off with the chip’s RF oscillator on/off operation. Opening the switch at pin 13 stops oscillation of the RF oscillator and the antenna switch drive output at pin 14 becomes 0 V. The audio system is operating in this state, which acts to suppress generation of popping noise in the audio as the antenna switches between on and off. When pin 13 is connected to V CC by a closed switch, the RF oscillator is operational and the antenna switch drive output DC level at pin 14 is high. Pin 13 should be connected to V CC when the antenna switch is not used. A maximum current of 30 mA can be obtained from the antenna switch driver. Be sure to connect 10 kΩ for R3 at pin 13 when the antenna switch is being used. R2 is used as protective resistance when the antenna switch power supply is switched on before the chip power supply. SAW resonator 11 10 9 RF switch R2 10 k 14 13 3k 7 VCC 3 + 80 k RF oscillator 60 k Antenna switch driver RF oscillator Channel switch C2 0.22 µ 60 k Figure 3 RF Oscillator Interface Circuit 6 Figure 4 Antenna Switch Interface Circuit HA11560FP/T Audio Modulator Pins 4 and 5 make up the reference oscillator for the 4.5 MHz audio modulator. Pin 4 is the oscillator ’s reference bias source. A 15 pF capacitor must be used for C3 at pin 4 to cut the ac signal. The oscillation frequency is determined by an external tank circuit. An external cuppling capacitor is not required when pin 6, which is the audio input pin, is almost equal to ground potential and the audio input signal dc level is ground potential. The ground potential of the input pin results in a circuit configuration that reduces pin 6 voltage fluctuations and suppresses popping noise. VCC 2k 200 Audio oscillator Audio amplifier 100 100 k 4 5 6 R5 330 C3 15 p T1 Audio input Figure 5 Audio Modulator Interface Circuit 7 HA11560FP/T Absolute Maximum Ratings (Ta = 25°C) Item Supply voltage Power dissipation Symbol VCC PT Tstg Topr Rating 6.0 400 (HA11560FP) 275 (HA11560T) Storage temperature Operating temperature –55 to +125 –20 to +70 °C °C Unit V mW Electrical Characteristics (Ta = 25°C) Item Supply current Video output level Video modulation factor Symbol ISS VO VM Min 9 89.5 73 77 81 Video output channel difference Video modulation factor channel difference Video output S/N White clip level Differential gain ∆VO ∆VM –2 –2 Typ 13 91.5 — 80 — 0 0 Max 18 94.5 79 83 87 2 2 dB % 15 15 Unit mA dBµ % No input Video input = 0.635 Vp-p Test Conditions Application Terminal 8 15 15 VSN VW DG — 89 — 55 92.5 2 — 96 5 dB % % VM = 50% 15 15 80% modulation at upper part of chroma signal 20 IRE 15 Differential phase Audio output P/S ratio Audio modulation factor Audio S/N Video input impedance Audio input impedance Spurious response within band 920-kHz beat Antenna switch pin voltage DP AO AM ASN RV RA Sin cb ASV — 5.0 22.4 50 10 75 — — 3.1 2 6.5 24.4 60 30 100 –75 –68 3.4 5 8.0 26.4 — — 145 –65 –61 3.7 deg dB ± kHz/ Input 0.14 Vp-p dev dB kΩ kΩ dB dB V Measurement of spurious response between fV and fA 0.635 Vp-pinput Load current = 15 mA when supply voltage = 5 V Audio modulation = 60 % 15 2, 15 2 5 16 6 2, 15 2, 15 14 8 HA11560FP/T Electrical Characteristics (Ta = 25°C) (cont) Item Antenna switch residual voltage Carrier-off switch carrier off voltage Carrier-off switch carrier on voltage Symbol ASRV COFF CON Min 0 0 2.5 Typ 0 — — Max 0.1 0.5 5.0 Unit V V V Test Conditions When supply voltage = 5 V Application Terminal 14 13 13 Package Dimensions Unit : mm • HA11560FP 16 10.06 10.5 Max 9 5.5 1 0.8 Max 0.1 ± 0.1 2.0 Max 2.2 Max 8 + 0.05 – 0.02 0.2 7.8 + 0.3 – 0.20 0 – 10 ° 0.7 ± 0.2 7.62 (300 mil) Type 1.27 ± 0.15 0.40 – 0.05 + 0.10 0.10 0.12 M Hitachi Code FP-16DA EIAJ SC-530-16C JEDEC 9 HA11560FP/T • HA11560T 16 5.00 5.4 Max 9 4.40 1 8 0.65 0.20 ± 0.10 0.13 M 6.40 ± 0.20 0.17 ± 0.05 1.10 Max 0.10 0.03 Min 0.1Max 0 – 10° 0.50 ± 0.10 Hitachi Code TTP-16DA EIAJ JEDEC 10