LA7161BM/BV

No.A0006-2/8

Electrical Characteristics/Operating Characteristics at Ta = 25

°C, VCC = 5.0V, Measured with US3ch unless

otherwise specified

Parameter

Symbol

Conditions

Ratings

Unit

min

typ

max

Current drain 1

ICC1

No signal, pin 6 high

26

37

48

mA

Current drain 2

ICC2

No signal, pin 6 low

17

25

33

mA

Regulator voltage

Vreg

No signal

3.7

3.9

4.1

V

Antenna driver voltage

Vanton

Pin 6 high, 220

Ω load

3.2

3.5

3.8

V

RF type

Video carrier output US

Pus

No signal (Note 1)

85

87

89

dB

μ

Video carrier output JP

Pjp

No signal (Note 1)

84.5

86.5

88.5

dB

μ

Video carrier output TW

Ptwn

No signal (Note 1)

84

86

88

dB

μ

Audio carrier output ratio

P/S

S: fp+4.5MHz

14.5

16

17.5

dB

Audio 2

P/S2

S2: fp+2

×4.5MHz

50

65

dB

Audio 3

P/S3

S3: fp+3

×4.5MHz

45

55

dB

Chroma beat

P/CB

Vin = 3.58MHz , 0.6Vp-p

CB: fp+920kHz

65

72

dB

Video harmonic distortion

P/V2

Vin = 1MHz , 1Vp-p

V2: fp+2MHz

45

65

dB

Video type

Video modulation

Mp

Vin = Stair step, 1Vp-p

75

80

85

%

White clip level

(Max video modulation)

WCL

Vin = Stair step, 1.5Vp-p

88

93

98

%

Differential gain

DG

Vin = 10-Stair step, 1Vp-p

-5

5

%

Differential phase

DP

Vin = 10-Stair step, 1Vp-p

-5

5

Deg

Audio type

Audio modulation

Ms

Ain = 1kHz, 1Vp-p

(Note 2)

90

100

110

%

Maximum audio modulation

Msmx

THD<3%

400

%

Audio distortion

THD

Ain = 1 kHz, 1Vp-p

0.4

2

%

Audio S/N

AS/N

Ain = 1 kHz, 1Vp-p

Vin = Color bar, 1Vp-p

45

52

dB

Note 1:

9.5dB added to the RFOUT value measured with a analyzer of the input impedance of 50

Ω.

Note 2:

100% =

±25kHz modulation.

Cautions for use

• Set the variable L (between pins 9 and 10) of RFVCO so that the RF output frequency becomes 67.25MHz when

2.7 V is applied to V12 (pin 12) in the US4ch mode for the US specifications, 97.25MHz when 2.6V is applied to

V12 (pin 12) in the JPN2ch mode for the JPN specifications, and 211.25MHz when 2.5V is applied to V12 (pin

12) in the TWN13ch mode for the TWN specifications.

Set the C (pins 9-10) value of RF VCO, so that the V12 (pin 12) voltage difference

ΔV12 CH between US 4CH

and US3CH in the US specification and the V12 (pin 12) voltage difference

ΔV12CH between JPN2CH and

JPN1CH in the JPN specification becomes

ΔV12CH≤±0.25V. (This is necessary because the oscillation

frequency during free run (without PLL control) of PF VCO differs due to the floating capacity of pattern.)

• Handle pins 9 and 10 with care to prevent electrostatic breakdown because their high frequency characteristics

are extremely important.