Video ICs
BA7184S
Parameter
〈Recording system〉 (Pin 12: L)
Quiescent current
Recording AGC level 1
Recording AGC level 2
AGC control sensitivity
AGC frequency characteristic
2nd harmonic distortion
Symbol Min. Typ. Max. Unit
Conditions
Iq (R)
—
67
IOAR1
27
30
IOAR2
24
27
∆IOAR — 0.3
∆IOAF – 8 – 3
100 mA No signal
33
mAP-P
Pin 14 input = 125mVP-P, pin 2: L, pin 5
output measurement
30
mAP-P
Pin 14 input = 125mVP-P, pin 2: H, pin 9
output measurement
2.0
dB
Pin 14 input = 62.5mVP-P, to 250mVP-P, pin 5
output level differential
— dB f = 8.0 / 1.0MHz, pin 14 input = 125mVP-P,∗2
2HDR — – 45 – 35 dBc Pin 14 input = 125mVP-P, 8MHz spurious
Measurement
circuit
Fig. 2
Fig. 2
Fig. 2
Fig. 2
Fig. 2
Fig. 2
3rd harmonic distortion
3HDR — – 50 – 35 dBc Pin 14 input = 125mVP-P, 12.0MHz spurious∗2
Cross modulation distortion
CMDR — – 50 – 35 dBc 4.0MHz ± 630kHz spurious∗2
Maximum output level
IOMR
40
50
— mAP-P When pin 5 output 2nd harmonic distortion is – 30dB
Recording current load characteristic ∆IORL – 2.0 – 0.3
—
dB
Pin 5 output level difference when load
L: 8.2 and 12µH∗2
Mute attenuation ratio
MUR — – 45 – 35 dBc Pin 5 output level difference for pin 12: M / L
Fig. 2
Fig. 2
Fig. 2
Fig. 2
Fig. 2
AGC mode holding voltage
VTH17H 2.8
—
VCC
V Pin 17 DC voltage to maintain recording
AGC operation.
AGC mode holding voltage
VTH17L
0
—
1.2 V Pin 17 DC voltage to maintain recording AGC stopped.
∗2 Guaranteed design values.
Note: dBc: dB below carrier (used to express relative level from carrier reference for convenience sake)
Fig. 2
Fig. 2
4