la7688b Sanyo Semiconductor Corporation, la7688b Datasheet - Page 7

• Manufacturer Part Number: la7688b
• Description: Pal/ntsc Color Television-use Single-chip Lsi
• Manufacturer: Sanyo Semiconductor Corporation

VIF Input Signals and Test Conditions
1. All input signals must be applied to VIF IN shown in the test circuit diagram.
2. The indicated voltage values of the input signals are all measured at VIF IN shown in the test circuit diagram.
3. All switches must be set to OFF unless otherwise specified.
4. All VRs must be set to their center position unless otherwise specified.
5. The input signals and their levels are summarized below.
SIF Block Input Signal and Test Conditions
1. The SIF block input signal must be applied to SIF IN shown in the test circuit diagram.
2. The indicated voltage value of the input signal is measured at SIF IN shown in the test circuit diagram.
3. All switches must be set to OFF unless otherwise specified.
4. All VRs must be set to their center position unless otherwise specified.
5. The input signals and their levels are summarized below.
SG1
SG2
SG3
SG4
SG5
SG1
(SIF IN)
Input Signals
Input Signals
Waveform
Waveform
LA7688B
38.9MHz or variable frequency
38.9MHz, 40% or 78% MOD
38.9MHz, 87.5% VIDEO MOD
10-step waveform (subcarrier : 4.43MHz) standard signal
34.47MHz
33.4MHz
Sweep signal, center frequency = 38.9MHz
5.5MHz, ∆f = ±30kHz
5.5MHz, 30% MOD
Conditions
Conditions
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