PLL SPLIT VIF / SIF

M52766FP

MITSUBISHI ICs

(TV)

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5. AGC Control Range: GR

GR = VIN MAX - VIN MIN

[dB]

7. Capture range: CL - U

1. Increase the frequency of SG9 until the VCO is out of locked-oscillation.

2. Decrease the frequency of SG9 and measure the frequency fU when the

VCO locks.

CL - U = fU - 58.75

[MHz]

8. Capture range: CL - L

1. Decrease the frequency of SG9 until the VCO is out of locked-oscillation.

2. Increase the frequency of SG9 and measure the frequency fL when the

VCO locks.

CL - L = 58.75 - fL

[MHz]

9. Capture range: CL - T

CL - T = CL - U + CL - L

[MHz]

6. RF AGC Operating Voltage: V17

Input SG8 into VIF IN and gradually reduce Vi and then measure the input

level when RF AGC output TP17 reaches 1/2 VCC, as shown below.

TP17

Voltage

Vi

Vi(dBµ)

1/2VCC

10