BA7207AK View Datasheet(PDF) - ROHM Semiconductor

Part Name

Description

Manufacturer

BA7207AK

SECAM chroma signal processor for VHS VCRs

ROHM Semiconductor 

Video ICs

BA7207AS / BA7207AK

•Reference design data

(unless otherwise noted, Ta = 25°C, VCC = 5.0V, fo (REC BELL) = 4.286MHz, fo (PB EQ) = 1.0715MHz)

Parameter

〈1.1MHzBPF〉

1.1MHz gain

0.5MHz suppression ratio

3.2MHz suppression ratio

Groupe delay time

〈2.2MHzBPF〉

2.2MHz gain

1.1MHz suppression ratio

3.2MHz suppression ratio

Groupe delay time

〈4.3MHz BPF - A〉

4.3MHz gain

3.2MHz suppression ratio

5.5MHz suppression ratio

Groupe delay time

〈4.3MHz BPF - B〉

4.3MHz gain

3.5MHz suppression ratio

5.2MHz suppression ratio

Groupe delay time

〈REC BELL〉

4.3MHz gain

4.1MHz suppression ratio

4.5MHz suppression ratio

〈PB BELL〉

4.3MHz gain

4.1MHz gain

4.5MHz gain

Center frequency ratio

〈PB EQ〉

1.1MHz gain

1.0MHz suppression ratio

1.2MHz suppression ratio

〈REC EQ〉

1.1MHz gain

1.0MHz gain

1.2MHz gain

Center frequency ratio

Symbol Min. Typ. Max. Unit

Conditions

GF11

GF12

GF13

DF1

— 1.0 —

— – 4.0 —

— – 30.0 —

370 420 470

dB VIN= 0.3VP-P, 1.0715MHz

dB VIN= 0.3VP-P, 0.5MHz

dB VIN= 0.3VP-P, 3.2145MHz

nS VIN= 0.3VP-P, 1.0715MHz

GF21

GF22

GF23

DF2

— – 6.0 —

— – 25.0 —

— – 25.0 —

180 230 280

dB VIN= 0.3VP-P, 2.143MHz

dB VIN= 0.3VP-P, 1.0715MHz

dB VIN= 0.3VP-P, 3.2145MHz

ns VIN= 0.3VP-P, 2.143MHz

GF31

GF32

GF33

DF3

— 7.0 —

— – 3.0 —

— – 3.0 —

160 210 260

dB VIN= 0.1VP-P, 4.286MHz

dB VIN= 0.1VP-P, 3.2MHz

dB VIN= 0.1VP-P, 5.5MHz

nS VIN= 0.1VP-P, 4.286MHz

GF41

GF42

GF43

DF4

— 9.0 —

— – 3.0 —

— – 3.0 —

250 300 350

dB VIN= 0.1VP-P, 4.286MHz

dB VIN= 0.1VP-P, 3.5MHz

dB VIN= 0.1VP-P, 5.2MHz

nS VIN= 0.1VP-P, 4.286MHz

GRB1

GRB2

GRB3

— 19.5 —

— – 5.0 —

— – 5.5 —

dB VIN= 0.3VP-P, 4.286MHz

dB VIN= 0.3VP-P, 4.1MHz

dB VIN= 0.3VP-P, 4.5MHz

GPB1

GPB2

GPB3

dfOB

— – 19.5 —

— 5.0 —

— 5.5 —

–1

0

1

dB VIN= 0.3VP-P, 4.286MHz

dB VIN= 0.3VP-P, 4.1MHz

dB VIN = 0.3VP-P, 4.5MHz

%

dfOB = (fO (PB) – fO (REC) ) / fO (REC)

GRE1

GRE2

GRE3

— 19.5 —

— – 8.0 —

— – 11.0 —

dB VIN= 0.3VP-P, 1.0715MHz

dB VIN= 0.3VP-P, 1.0MHz

dB VIN= 0.3VP-P, 1.2MHz

GPE1

GPE2

GPE3

dfOE

— – 19.5 —

— 8.0 —

— 11.0 —

–1

0

1

dB VIN= 0.3VP-P, 1.0715MHz

dB VIN= 0.3VP-P, 1.0MHz

dB VIN= 0.3VP-P, 1.2MHz

%

dfOE = (fO (REC) – fO (PB) ) / fO (PB)

9

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