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Ordering number : ENN7875B
Monolithic Linear IC
LA77000V
Overview
VHF Band RF Modulator (US3, 4ch Compatible)
The LA77000V is a VHF band RF module that supports US3, 4ch Compatible.
Functions
* RF VCO (AGC). * RF Mixer. * RF Buffer. * Video clamp. * White clipping. * Audio FM. * 4V regulator. * Reference OSC.
Specifications
Maximum Ratings at Ta = 25C
Parameter Maximum supply rating Allowable power dissipation Operating temperature Storage temperature Symbol VCC max Pd max Topr Tstg Ta 75C Conditions Ratings 7.0 350* -20 to +75 -55 to +150 Unit V mW C C
* Mounted to the glass epoxy resin made board (114.3mmx76.1mmx1.6mm) Operating Conditions at Ta = 25C
Parameter Recommended operating voltage Operating voltage range Symbol VCC VCC op Conditions Ratings 5.0 4.5 to 5.5 Unit V V
Any and all SANYO Semiconductor products described or contained herein do not have specifications that can handle applications that require extremely high levels of reliability, such as life-support systems, aircraft's control systems, or other applications whose failure can be reasonably expected to result in serious physical and/or material damage. Consult with your SANYO Semiconductor representative nearest you before using any SANYO Semiconductor products described or contained herein in such applications. SANYO Semiconductor assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all SANYO Semiconductor products described or contained herein.
N2206 / 91405 MS OT B8-7276 No.7875-1/8
LA77000V
Electrical Characteristics/Operating Characteristics at Ta = 25C, VCC = 5.0V, Measured with US3ch unless otherwise specified
Parameter Current drain 1 Current drain 2 Regulator voltage Antenna driver voltage Negative Resistance (pin7) RF type Video carrier frequency accuracy Video carrier frequency stability Video carrier output US Audio carrier output ratio Audio 2nd harmonic distortion Audio 3rd harmonic distortion Chroma beat Video harmonic distortion Video type Video modulation White clip level Differential gain Differential phase Video signal frequency response Video S/N Audio type Audio carrier frequency accuracy Audio modulation Maximum audio modulation Audio distortion Audio S/N Fs Ms Msmx THD AS/N X'tal accuracy 30ppm Ain = 1kHz, 1Vp-p (Note 3) THD < 3% Ain = 1 kHz, 1Vp-p Ain = 1 kHz, 1Vp-p Vin = Color bar, 1Vp-p 45 -5 90 400 0.4 50 2 100 5 110 kHz % % % dB Mp WCL DG DP Rfv VS/N Vin = Stair step, 1Vp-p Vin = Stair step, 1.5Vp-p Vin = 10-Stair step, 1Vp-p (Note 2) Vin = 10-Stair step, 1Vp-p (Note 2) Vin = CW, 1Vp-p 0.75 MHz to 3.75MHz Vin = 50% 4.2MHz LPF ON 75 90 -5 -5 -1.1 -0.4 50 80 95 85 99 5 5 0.3 % % % C dB dB Fp Fpt Pus P/S P/S2 P/S3 P/CB P/V2 Fp (US3ch): 61.25MHz X'tal accuracy 30ppm X'tal accuracy 30ppm Ta = 4C to 38C No signal (Note 1) S: fp + 4.5MHz S2: fp + 2 x 4.5MHz S3: fp + 3 x 4.5MHz Vin = 3.58MHz, 0.6Vp-p CB: fp + 920kHz Vin = 1MHz, 1Vp-p V2: fp + 2MHz -25 -25 85.5 14.5 50 45 65 45 87.5 16 65 55 74 72 25 25 89.5 17.5 kHz kHz dB dB dB dB dB dB Symbol ICC1 ICC2 Vreg Vanton -R No signal, pin 6 high No signal, pin 6 low No signal Pin 6 high, 220 load CI100 Conditions min 28 15 3.7 3.2 1.2 Ratings typ 41 22 3.9 3.5 2.2 max 53 29 4.1 3.8 mA mA V V k Unit
Note 1: Note 2: Note 3:
9.5dB added to the RFOUT value measured with a spectrum analyzer of the input impedance of 50. Difference between 1 stair step and 8 stair step of 10 stair step. 100% = 25kHz modulation.
No. 7875-2/8
LA77000V
Package Dimensions
unit : mm 3178B
Block Diagram
No. 7875-3/8
LA77000V
Pin equivalent circuit
Pin No. 1 Symbol P/S ADJ Voltage 2.7 Circuit Remarks Capacitor and additionally a Resistor may inserted between the circuit and GND attenuate the audio inter-carrier level.
10k
500
20PF
2k
1
2
AUDIO IN
0
FM audio Input.
3k 2 100k
3
FM LPF
2.2
Control pin of output FM oscilator for the PLL phase detector charge pump.
1k
3
1k 1k
2.2V
4 5
GND VIDEO IN
0 2.6 Video Input Clamped with sink chip.
100 500
5
6
CARR OFF
-
Hi:14pin Hi RF Operating Lo:14pin Lo RF Stop
100k 25k 6 20k
Continued on next page.
No. 7875-4/8
LA77000V
Continued from preceding page. Pin No. 7 Symbol IN XTAL Voltage 3.5 Circuit Remarks 4MHz oscillator inserted between the circuit and GND. External input of the 4MHz signal possible. Insertion of about 270k resistor between the circuit and GND ensurescompatibility with 3.58MHz of VTR chroma sub-carrier.
5PF 100
500
Insertion of about 270k resistor between the circuit and VCC ensurescompatibility with 27MHz of D-STB reference.
7
8
CH
1.7
CH selector pin
33k 8 5k 17k
US3: 4.2V or more US4: 2.7V to 3.8V
9 10 11 12
PLL GND RF GND VCC2 RF LPF
0 0 5.0 2.6
PLL type GND RF type GND RF VCO type VCC Control pin of output RF oscillator for the PLL phase detector charge pump.
2.8V 1k 2.2V 1k 12 2k
Continued on next page.
No. 7875-5/8
LA77000V
Continued from preceding page. Pin No. 13 14 Symbol VCC1 ANT DRV Voltage 5.0 3.5 Circuit VCC Antenna SW driver pin. 15mA drive. Remarks
50k
1k
14 100k
15
RF OUT
3.0
RF mixed signal output.
15 1.5
16
REG
3.9
Regulator output.
16 56.5k 25k
No. 7875-6/8
LA77000V
Test Circuit
Sample Application Circuit 1 (USch) for VCR
No. 7875-7/8
LA77000V
Sample Application Circuit 2 (USch) for STB
Specifications of any and all SANYO Semiconductor products described or contained herein stipulate the performance, characteristics, and functions of the described products in the independent state, and are not guarantees of the performance, characteristics, and functions of the described products as mounted in the customer's products or equipment. To verify symptoms and states that cannot be evaluated in an independent device, the customer should always evaluate and test devices mounted in the customer's products or equipment. SANYO Semiconductor Co., Ltd. strives to supply high-quality high-reliability products. However, any and all semiconductor products fail with some probability. It is possible that these probabilistic failures could give rise to accidents or events that could endanger human lives, that could give rise to smoke or fire, or that could cause damage to other property. When designing equipment, adopt safety measures so that these kinds of accidents or events cannot occur. Such measures include but are not limited to protective circuits and error prevention circuits for safe design, redundant design, and structural design. In the event that any or all SANYO Semiconductor products (including technical data,services) described or contained herein are controlled under any of applicable local export control laws and regulations, such products must not be exported without obtaining the export license from the authorities concerned in accordance with the above law. No part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording, or any information storage or retrieval system, or otherwise, without the prior written permission of SANYO Semiconductor Co., Ltd. Any and all information described or contained herein are subject to change without notice due to product/technology improvement, etc. When designing equipment, refer to the "Delivery Specification" for the SANYO Semiconductor product that you intend to use. Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed for volume production. SANYO Semiconductor believes information herein is accurate and reliable, but no guarantees are made or implied regarding its use or any infringements of intellectual property rights or other rights of third parties.
This catalog provides information as of September, 2005. Specifications and information herein are subject to change without notice. PS No.7875-8/8

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