VHF Band RF Module
LA7161NM/NV
Overview
The LA7161NM and LA7161NV are VHF band RF modules that support channels 3 and 4 in the US, channels 1 and 2 in Japan, and channel 13 in Taiwan.
Functions
RF VCO
RF mixer
RF buffer
Video clamp
White clipping
FM audio demodulator
4 V regulator
Reference oscillator
Packages: LA7161NM: MFP16 (225mil)
LA7161NV: SSOP16 (225mil)
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| Block Diagram |
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REG | RFOUT | ANT DRV | 1 | RF LPF | 2 | OSC2 | OSC1 |
CC | CC | ||||||
V | V | ||||||
16 | 15 | 14 | 13 | 12 | 11 | 10 | 9 |
REG | BUF |
| RF |
| BUF |
| RF |
4V |
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| MIXER |
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| OSC |
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| off |
BIAS |
| ANT SW | off |
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| DRIVER |
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| PLL |
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| FM | PLL |
| WHITE | CARRIER |
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| OSC |
| CLIP | OFF SW |
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| + |
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| CLAMP |
| REF | CHANNEL |
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| OSC |
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1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
PSADJ | AUDIO IN | FM LPF | GND | VIDEO IN | CARR OFF | IN XTAL | CH |
VHF Band RF Module
LA77000V
Overview
The LA77000V is a VHF band RF module that supports channels 3 and 4 in the US.
Functions
RF VCO
RF mixer
RF buffer
Video clamp
White clipping
FM audio demodulator
4 V regulator
Reference oscillator
Package: SSOP16 (225mil)
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| Block Diagram |
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REG | RFOUT | ANT DRV | 1 | RF LPF | 2 | RF GND | PLL GND |
CC | CC | ||||||
V | V | ||||||
16 | 15 | 14 | 13 | 12 | 11 | 10 | 9 |
REG | BUF |
| RF |
| BUF |
| RF |
4V |
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| MIXER |
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| OSC |
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| off |
BIAS |
| ANT SW | off |
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| DRIVER |
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| PLL |
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| FM | PLL |
| WHITE | CARRIER |
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| OSC |
| CLIP | OFF SW |
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| + |
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| CLAMP |
| REF | CHANNEL |
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| OSC |
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1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
PSADJ | AUDIO IN | FM LPF | GND | VIDEO IN | CARR OFF | IN XTAL | CH |
61 SANYO TV . VCR | SANYOTV..VTRVCR 62 |