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PDF LA75676V Data sheet ( Hoja de datos )
| Número de pieza | LA75676V | |
| Descripción | IF Signal Processor (VIFSIF) | |
| Fabricantes | Sanyo Semicon Device | |
| Logotipo |  |
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www.DataSheet.co.kr
Ordering number : ENA0831
LA75676V
Monolithic Linear IC
For TV and VCR Products
IF Signal Processor (VIF+SIF)
Overview
The LA75676V is a VIF/SIF IC that supports NTSC intercarrier reception and adopts a semi-adjustment-free design. It is
provided in the SSOP24 (225mil, 0.5mm lead pitch) package, which is appropriate for miniature 2-in-1 tuner products. In
the VIF block, it adopts a design that uses AFT adjustment to obviate the need for VCO adjustment, and thus can simplify
the adjustment steps required in end product manufacturing. It uses a PLL technique for FM detection. It features the 5V
supply voltage appropriate for multimedia products. In addition, it achieves superb audio quality by incorporating a buzz
canceller that suppresses Nyquist buzzing.
Functions
• VIF block: VIF amplifier, buzz canceller, PLL detector, IF AGC, RF AGC, AFT, and an equalizer amplifier
• SIF block: Limiter amplifier, PLL FM detector
Specifications
Maximum Ratings at Ta = 25°C
Parameter
Maximum supply voltage
Circuit voltage
Circuit current
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
VCC max
V13, V17
I6
I10
I24
Pd max
Topr
Tstg
Conditions
Ta ≤ 70°C * Mounted on a board
* When mounted on a 114.3×76.1×1.6mm3, glass epoxy board.
Ratings
6
VCC
-3
-10
-2
400
-20 to +70
-55 to +150
Unit
V
V
mA
mA
mA
mW
°C
°C
Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to
"standard application", intended for the use as general electronics equipment (home appliances, AV equipment,
communication device, office equipment, industrial equipment etc.). The products mentioned herein shall not be
intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace
instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety
equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives in case
of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any guarantee
thereof. If you should intend to use our products for applications outside the standard applications of our
customer who is considering such use and/or outside the scope of our intended standard applications, please
consult with us prior to the intended use. If there is no consultation or inquiry before the intended use, our
customer shall be solely responsible for the use.
Specifications of any and all SANYO Semiconductor Co.,Ltd. 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.
42507 MS PC B8-5183,B8-5037 No.A0831-1/9
Datasheet pdf - http://www.DataSheet4U.net/
1 page  
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LA75676V
Test Conditions
V1. Circuit current • • • • [15]
1. Internal AGC
2. Input a 45.75MHz, 10mVrms, CW signal to the VIF input pin.
3. RF AGC Vr maximum
4. Connect a current meter to VCC and measure the current flowing into the IC.
V2, V3. Maximum RF AGC voltage, minimum RF AGC voltage • • • • [V9H, V9L]
1. Internal AGC
2. Input a 45.75MHz, 10mVrms, CW signal to the VIF input pin.
3. Vary the RF AGC Vr and, at the maximum resistance, measure the maximum RF AGC voltage. (F)
4. Vary the RF AGC Vr and, at the minimum resistance, measure the maximum RF AGC voltage. (F)
V4. Input sensitivity • • • • [Vi]
1. Internal AGC
2. fp = 45.75MHz, 400Hz 40% AM (VIF input)
3. Set S1 to the off position and pass the input through a 100kΩ resistor.
4. Measure the VIF input level such that the 400Hz detection output level at test point A becomes 0.64Vp-p.
V5. AGC range • • • • [GR]
1. External AGC. Apply the VCC voltage to the IF AGC input (pin 17).
2. With the same conditions as used for V4, measure the VIF input level such that the detection output level becomes
0.64Vp-p. • • • Vi1
Vi1
3. GR = 20log Vi dB
V6. Maximum allowable input • • • • [Vi max]
1. Internal AGC
2. fp = 45.75MHz, 15kHz 78% AM (VIF input)
3. Measure the VIF input level such that the detection output level at test point A is ±1dB of the video output (Vo).
V7. Video output voltage (no input) • • • • [V6]
1. External AGC. Apply the VCC voltage to the IF AGC input (pin 17).
2. Measure the video output (A) DC voltage.
V8. Sync signal tip voltage • • • • [V6tip]
1. Internal AGC
2. Input a 45.75MHz, 10mVrms, CW signal to the VIF input pin.
3. Measure the video output (A) DC voltage.
V9. Video output level • • • • [VO]
1. Internal AGC
2. fp = 45.75MHz, 15kHz 78% AM
Vi = 10mVrms (VIF input)
3. Measure the wave height of the detection output level at test point A. (Vp-p)
No.A0831-5/9
Datasheet pdf - http://www.DataSheet4U.net/
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