BA7207AK View Datasheet(PDF) - ROHM Semiconductor

Part Name

Description

Manufacturer

BA7207AK

SECAM chroma signal processor for VHS VCRs

ROHM Semiconductor 

Video ICs

BA7207AS / BA7207AK

Parameter

Symbol Min. Typ. Max. Unit

Conditions

[Filter block]

〈1.1MHz BPF characteristic〉

1.1MHz voltage gain

GF11 – 2.8 0.7 4.2 dB V18= 25mVP-P, 1.0715MHz

0.5MHz voltage gain

GF12 – 6.5 – 3.0 0.5 dB V18= 25mVP-P, 0.5MHz

3.2MHz voltage gain

GF13

— – 35.0 – 26.0 dB V18= 25mVP-P, 3.2145MHz

〈4.3MHz BPF - A characteristic〉

4.3MHz voltage gain

GF31 – 11.3 – 7.8 – 4.3 dB V1 = 500mVP-P, 4.286MHz

3.2MHz voltage gain

GF32 – 16.1 – 12.6 – 9.1 dB V1 = 500mVP-P, 3.2MHz

5.5MHz voltage gain

GF33 – 14.0 – 10.5 – 7.0 dB V1 = 500mVP-P, 5.5MHz

〈REC BELL + 4.3MHz BPF - A characteristic〉

4.3MHz voltage gain

GRB1 – 0.7 2.8 6.3 dB V1 = 170mVP-P, 4.286MHz

4.1MHz voltage gain

GRB2 – 7.0 – 3.5 0

dB V1 = 170mVP-P, 4.1MHz

4.5MHz voltage gain

GRB3 – 7.2 – 3.7 – 0.2 dB V1 = 170mVP-P, 4.5MHz

〈PB BELL + 4.3MHz BPF - A characteristic〉

4.3MHz voltage gain

GPB1 – 20.9 – 17.4 – 13.9 dB V1 = 800mVP-P, 4.286MHz

4.1MHz voltage gain

GPB2 – 16.2 – 12.7 – 9.2 dB V1 = 800mVP-P, 4.1MHz

4.5MHz voltage gain

GPB3 – 15.3 – 11.8 – 8.3 dB V1 = 800mVP-P, 4.5MHz

〈REC EQ + 1.1MHz BPF characteristic〉

1.1MHz voltage gain

GRE1 – 4.0 – 0.5 3.0 dB V18= 95mVP-P, 1.0715MHz

1.0MHz voltage gain

GRE2 4.1 7.6 11.1 dB V18= 95mVP-P, 1.0MHz

1.2MHz voltage gain

GRE3 6.7 10.2 13.7 dB V18= 95mVP-P, 1.2MHz

〈PB EQ + 1.1MHz BPF characteristic〉

1.1MHz voltage gain

GPE1 2.5 6.0 9.5 dB V18= 25mVP-P, 1.0715MHz

1.0MHz voltage gain

GPE2 – 5.1 – 1.6 1.9 dB V18= 25mVP-P, 1.0MHz

1.2MHz voltage gain

GPE3 – 8.9 – 5.4 – 1.9 dB V18= 25mVP-P, 1.2MHz

Measurement

circuit

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•Guaranteed design parameters (unless otherwise noted, Ta = 25°C, VCC = 5.0V, delayed sync input)

Parameter

Symbol

Min.

Typ.

Max.

Unit

Conditions

REC sync-gate phase

TDR

1.3

2.4

3.5

µs

DIV (pin 14 / pin 15), REC mode

PB sync-gate phase

TDP

0.5

1.6

2.7

µs

MUL (pin 2 / pin 42), PB mode

REC sync-gate amplitude

TWR

4.9

5.2

5.5

µs

DIV (pin 15 / pin 14), REC mode

PB sync-gate amplitude

TWP

6.1

6.4

6.7

µs

MUL (pin 2 / pin 42), PB mode

The pin numbers in brackets are for the BA7207AS and the BA7207AK respectively.

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