SANYO LA9511W Datasheet

Ordering number : ENN6468

71400RM (OT) No. 6468-1/13

Overview

The LA9511W is a transmitter IC developed for free­space infrared transmission of stereo audio and video
signals. It integrates all the required functions for
transmission, including audio signal modulation, video
signal modulation, LED drive, and other functions on a
single chip. An AV coupler system can be implemented
easily using this IC and a receiver IC (such as the
LA9520V).

Functions

[Audio Block]

• Audio input block ALC with wide AGC operating range

• Integration of passive components used for preemphasis
and time constants onto the chip.

• Deviation adjustment amplifier. Adjustable from an
externally applied voltage: supports an electronic
variable resistor function.

• Filter: Removes unneeded high-frequency components.

• Audio VCO. PLL circuit adopted for adjustment-free
operation.

[Video Block]

• Video deviation amplifier. Adjustable from an externally
applied voltage: supports an electronic variable resistor
function.

• Video preemphasis

• Video VCO. f0 adjustment from an externally applied
voltage: supports an electronic variable resistor function.

• Filter. Removes unneeded high-frequency components.

[Driver Block]

• Mixer and driver amplifier. Features excellent high­frequency characteristics and allows addition of external
data (remote control).

Package Dimensions

unit: mm

3163A-SQFP48

0.5

7.0

9.0

0.15

0.180.75 0.5

0.75

0.75

0.5

0.75

0.5

0.1

112

13

24

25

36

37

48

7.0

9.0

1.7max

SANYO: SQFP48

[LA9511W]

LA9511W

SANYO Electric Co.,Ltd. Semiconductor Company

TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN

AV Remote Coupler Transmitter

Monolithic Linear IC

Any and all SANYO products described or contained herein do not have specifications that can handle
applications that require extremely high levels of reliability, such as life-support systems, aircraft’s
control systems, or other applications whose failure can be reasonably expected to result in serious
physical and/or material damage. Consult with your SANYO representative nearest you before using
any SANYO products described or contained herein in such applications.

SANYO assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other
parameters) listed in products specifications of any and all SANYO products described or contained
herein.

No. 6468-2/13

LA9511W

Parameter Symbol Conditions Ratings Unit

Maximum supply voltage V

CC

max 5.5 V
Allowable power dissipation Pd max Mounted on the specified circuit board. 450 mW
Operating temperature Topr –20 to +70 °C
Storage temperature Tstg –40 to +150 °C

Specifications

Maximum Ratings at Ta = 25°C

Note: * Specified circuit board: 24.0 × 25.5 × 1.0 mm3.

100

0

200

300

400

450

500

600

–20 0 20 40 60 80 100

Allowable power dissipation, Pdmax — mW

Pd max — Ta

Ambient temperature, Ta — °C

Mounted on the specified circuit board: 24.0 × 25.5 × 1.0mm3.

Independent IC

280

Parameter Symbol Conditions

Ratings

Unit

min typ max

I

CC

1

No input, except for the driver current

43 53 63 mA

Test pins: 12, 31, and 32

Current drain ICC2

No input, driver current

14.5 19 23.5 mA

Test pin: 24

I

CC

3

No input, current in standby mode

1.0 3 mA

Test pins: 12, 31, and 32

[Audio Block]

Deviation adjustment range Vde-adj

Standard input, the control voltage for ±22.5 kHz

0.1 1.25 V

Test pin: 45
The gain difference between 400 Hz and 10 kHz with

Left channel preemphasis gain GvpL the AGC off 11.7 13.7 15.7 dB

Test pin: 3
The gain difference between 400 Hz and 10 kHz with

Right channel preemphasis gain GvpR the AGC off 11.7 13.7 15.7 dB

Test pin: 5

ALC output level (L) V

ALC

L AGC off, Test pin: 3 –32.0 –30 –28.0 dBs

ALC output level (R) V

ALC

R AGC off, Test pin: 5 –32.0 –30 –28.0 dBs

Electrical Characteristics at Ta = 25°C, VCC= 4.8 V
Carrier frequency (Audio left channel: 4.3 MHz, right channel: 4.8 MHz, video: 11.8 MHz)
Audio input frequency: 400 Hz, input level: –30 dBs,
video input: 0.5 Vpp NTSC composite video signal 0 dBs = 775 mVrms.

Parameter Symbol Conditions Ratings Unit

Recommended supply voltage V

CC

4.8 V

Allowable operating voltage range V

CC

opg 4.5 to 5.2 V

Operating Conditions at Ta = 25°C

Continued on next page.

No. 6468-3/13

LA9511W

Parameter Symbol Conditions

Ratings

Unit

min typ max

ALC on output (L) V

ALON

L

AGC on, V

IN

= –15 dBs (1 kHz), Left and right input

–25.5 –22.0 –19.0 dBs

Test pin: 3

ALC on output (R) V

ALON

R

AGC on, V

IN

= –15 dBs (1 kHz), Left and right input

–25.5 –22.0 –19.0 dBs

Test pin: 5

ALC on output L/R deviation V

ALON

L/R

AGC on, V

IN

= –15 dBs (1 kHz), The output difference for

–2.5 0 2.5 dB

left and right input, Test pins: 3 and 5

THDL (ALCOUT) THDL1 V

IN

= –22 dBs (1 kHz), Test pin: 3 0.5 1.5 %

THDR (ALCOUT) THDR1 V

IN

= –22 dBs (1 kHz), Test pin: 5 0.5 1.5 %

THDL (ALCOUT) THDL2 V

IN

= –3 dBs (1 kHz), Test pin: 3 1.0 3.0 %

THDR (ALCOUT) THDR2 V

IN

= –3 dBs (1 kHz), Test pin: 5 1.0 3.0 %

Left channel oscillator

f

O

LN

No signal, SIG (pin 7), with a 3.579545 MHz input

4.298 4.300 4.302 MHz

frequency 1 Test pin: 15
Right channel oscillator

f

O

RN

No signal, SIG (pin 7), with a 3.579545 MHz input

4.798 4.800 4.802 MHz

frequency 1 Test pin: 15
Left channel oscillator

f

O

LP

No signal, SIG (pin 7), with a 4.433619 MHz input,

4.298 4.300 4.302 MHz

frequency 2 Test pin: 15
Right channel oscillator

f

O

RP

No signal, SIG (pin 7), with a 4.433619 MHz input,

4.798 4.800 4.802 MHz

frequency 2 Test pin: 15
Oscillator amplitude (L) VL Audio VCO output, Test pin: 15 150 220 300 mVpp
Oscillator amplitude (R) VR Audio VCO output, Test pin: 15 150 230 300 mVpp
Oscillator output R/L deviation ∆VR/L The R/L difference for the audio VCO outputs –3.5 0 +3.5 dB

Left second harmonic level 2HL

No input, the level difference with the fundamental,

–39 dB

Test pin: 15

Right second harmonic level 2HR

No input, the level difference with the fundamental,

–39 dB

Test pin: 15

Left third harmonic level 3HL

No input, the level difference with the fundamental,

–28 dB

Test pin: 15

Right third harmonic level 3HR

No input, the level difference with the fundamental,

–28 dB

Test pin: 15

[Video Block]

Carrier frequency adjustment

Vcar-aj

No input, the pin 35 voltage when adjusted to be f0 =

0.1 1.25 Vdc

range 11.8 MHz, Test pin: 35
Deviation frequency adjustment

Vdev-aj

V

IN

= 0.5 Vpp, the pin 39 voltage when the deviation is

0.1 1.25 Vdc

range adjusted to 2 MHz, Test pin: 39
DC clamp level V

CLAMP

No input, the voltage V36 - V37

5 80 mVdc

Test pins: 36 and 37

Preemphasis gain GVpre

The gain difference between 10 kHz and 5 kHz

12 dB

Test pin: 33

Video amplitude Vv

No input, the 11.8 MHz oscillator level

280 385 510 mVpp

Test pin: 16

Second harmonic level 2HV

No input, the level difference with the fundamental

–32 dB

Test pin: 16

Third harmonic level 3HV

No input, the level difference with the fundamental

–35 dB

Test pin: 16

[Mixer and Driver Block]

AC gain GVMD SIG16 = 0.38 Vpp (12 MHz), Test pin: 22 6.6 dB
Frequency characteristics FC

The gain difference between 20 MHz and 1 MHz

–3.0 –0.5 dB

Test pin: 22
Second harmonic 2HMD SIG16 = 0.38 Vpp (12 MHz), Test pin: 22 –34 dB
Third harmonic 3HMD SIG16 = 0.38 Vpp (12 MHz), Test pin: 22 –35 dB

Continued from preceding page.

Continued on next page.

No. 6468-4/13

LA9511W

Parameter Symbol Conditions

Ratings

Unit

min typ max

[Control Voltages]

Xtal SELECT [L] V4L

The voltage applied to pin 4 when a 4.43 MHz band

0.4 Vdc

crystal is used. Test pin: 4
Xtal SELECT [H] V4H

The voltage applied to pin 4 when a 3.58 MHz band

1.1 Vdc

crystal is used. Test pin: 4
STANBY SW [L] V14L

The voltage applied to pin 14 to perform a standby

0.8 Vdc

operation. Test pin: 14
STANBY SW [H] V14H

The voltage applied to pin 14 to clear standby.

2.0 Vdc

Test pin: 14
DRIVE SW [L] V21L

The voltage applied to pin 21 to perform a LED off

0.8 Vdc

operation. Test pin: 21
DRIVE SW [H] V21H

The voltage applied to pin 21 to perform a LED on

2.0 Vdc

operation. Test pin: 21

[In Combination with a Demodulator] Using the IFR-C1 (4 MHz version) Sony receiver IC

Audio left channel amplitude V

AL

VIN= –30 dBs (400 Hz)

250 mVrms

Deviation ±22.5 kHz, demodulator output
Audio right channel amplitude V

AR

VIN= –30 dBs (400 Hz)

250 mVrms

Deviation ±22.5 kHz, demodulator output
L/R output difference VAL/R

VIN= –30 dBs (400 Hz), simultaneous L/R inputs

–3 0 +3 dB

Deviation ±22.5 kHz, demodulator output
Audio left channel distortion THDLT V

IN

= –3 dBs (1 kHz), demodulator output 1.5 %

Audio right channel distortion THDRT V

IN

= –3 dBs (1 kHz), demodulator output 1.5 %

Audio left channel noise V

N

L

No input, Rg = 3 kΩ, IHFA filter

–56 dBs

Demodulator output
Audio right channel noise VNR

No input, Rg = 3 kΩ, IHFA filter

–56 dBs

Demodulator output

Continued from preceding page.