SANYO LA1193V, LA1193M Datasheet

Monolithic Linear IC

Ordering number : EN4715A

31097HA (OT)/61094TH(OT) A8-9997 No. 4715-1/21

LA1193M, 1193V

SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters

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

High-Performance FM Front End for Car Radios

Overview

The LA1193M and LA1193V are front-end ICs developed for use in car radios. It incorporates an extremely wide dynamic range mixer and a new AGC system consisting of a dual-system wide-band AGC and a new keyed AGC to provide excellent interference suppression characteristics.

Functions

• Double-balance mixer

• Pin diode drive output

• Differential IF amplifier

• Dual-system wide-band AGC circuit

• Local buffer output

• 3D-AGC system

• FET gate drive AGC output

• IF amplifier gain control pin

Features

• Improved interference characteristics — Expanded mixer input dynamic range

Mixer input usable sensitivity: 15 dBµ Mixer input I.M. QS: 90 dBµ (The dynamic range has been increased by 6 dB over the earlier LA1175M.)

— Development of a new wide-band AGC circuit

Improved interference characteristics for both nearchannel interference and far-channel interference Improved interference characteristics for the TV band

— Development of a 3D-AGC system

The adjacent channel two-signal interference characteristics can be effectively improved without degrading the strong-field three-signal interference characteristics during keyed AGC operation.

• Improved stability design — AGC circuit local oscillator isolation

Measures were taken to prevent the deterioration of AMR, noise level, THD and other characteristics during AGC operation.

— AGC circuit incorrect operation measures

The LA1193M provides methods to prevent incorrect operation due to local oscillator injection and loss of DC balance.

• Improved temperature characteristics — Conversion gain — AGC sensitivity — Antenna damping drive output current

Package Dimensions

unit: mm

3036B-MFP20

unit: mm

3179A-SSOP20

[LA1193M]

[LA1193V]

SANYO: SSOP20

Specifications

Maximum Ratings at Ta = 25°C

Note: * Connect a resistor (up to 10 kΩ) between pins 17 and 19.

Operating Conditions at Ta = 25°C

Operating Characteristics at Ta = 25°C, VCC= 8.0 V, in the specified test circuit, f = 88 MHz, f

OSC

= 77.3 MHz

Note: Values in parenthesis are for LA1193V.

No. 4715-2/21

LA1193M, 1193V

Parameter Symbol Conditions Ratings Unit

Maximum supply voltage

max VCCfor pins 5 and 17 9 V

max mix VCCfor pins 10 and 11 15 V

Pd max

LA1193M: (Ta ≤ 70°C)

500 mW

Allowable power dissipation

Mounted on a 41

× 30 × 1.1 mm3glass-Epoxy board

Pd max

LA1193V: (Ta ≤ 70°C)

500 mW

Mounted on a 23 × 36 × 1.6 mm

glass-Epoxy board

Operating temperature Topr * –40 to +85 °C Storage temperature Tstg –40 to +125 °C

Parameter Symbol Conditions

Ratings

Unit

min typ max

Current drain I

CCO

No input, V

CONT

= 0 V 19 24 29 mA

Antenna damping current ANT-DI 88 MHz, 100 dBµ, V

CONT

= 4.0 V 7.0 9.5 12.5 mA

AGC high voltage V

AGC-H

88 MHz, 0 dBµ, V

CONT

= 4.0 V 7.6 7.9 V

AGC low voltage V

AGC-L

88 MHz, 100 dBµ, V

CONT

= 4.0 V 0.4 0.9 V

Saturation output voltage V

OUT

88 MHz, 110 dBµ, V

CONT

= 4.0 V 97 110 dBµ

–3 dB limiting sensitivity Vi-Limit 88 MHz, 110 dBµ, V

CONT

= 4.0 V 78 85 92 dBµ

Conversion gain A. V 88 MHz, 75 dBµ, V

CONT

= 4.0 V 98 101 104 dBµ

Local buffer output V

OSC

-Buff No input, no modulation 105 109 dBµ

Narrow V

AGC-ON

V-NAGC

88 MHZ, V

CONT

= 4.0 V, at an input level 73 80 87 dBµ

such that V

AGC-OUT

is 2 V or less (76) (83) (90)

Wide V

AGC-ON

V-WAGC

88 MHZ, V

CONT

= 0 V, at an input level

97 101 105 dBµ

such that V

AGC-OUT

is 2 V or less

88 MHZ, V

CONT

variable, with 95 dBµ

3D-AGC-ON V3D-AGC

being the V

CONT

voltage input such that

0.4 0.6 0.8 V

AGC-OUT

switches from high to low and

2.0 V as the V

AGC

threshold value.

Parameter Symbol Conditions Ratings Unit

Recommended supply voltage V

8.0 V

Operating supply voltage range V

op 7.6 to 9 V

Block Diagram and Test Circuit Diagram

Application Circuit: USA and Europe

No. 4715-3/21

LA1193M, 1193V

Unit (Resistance: Ω, Capacitance: F)

Application Circuit: Japan

Coil Specifications

Coils Manufactured by Sumida Electronics

Japan band RF coil SA-129 or SA-143 Japan oscillator coil SA-125

Japan antenna coil SA-123 or SA-144 US band RF coil SA142 or SA-250

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LA1193M, 1193V

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Unit (Resistance: Ω, Capacitance: F)

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US band antenna coil SA-140 or SA-231 US band oscillator coil SA-278

Mixer coil (for both bands) SA-266

Pin Functions

No. 4715-5/21

LA1193M, 1193V

Pin No. Function Equivalent circuit Note

2 3 4 5

OSC BUFF

OSC Tr. base OSC GND OSC Tr. emitter OSC V

Colpitts oscillator

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No. 4715-6/21

LA1193M, 1193V

Pin No. Function Equivalent circuit Note

7 10 11

Mix input (1) Mix input (2) Mix out (1) Mix out (2)

Antenna damping drive output

IF GND

W-AGC input

Mixer input usable sensitivity 15 dBµ

Mixer input I.M. QS

90.5 dBµ (6.5 dB higher than previous products)

Conversion gain 15 dB

Input impedance 25 Ω

ANTD

= 10 mA

Since the DC cut capacitor is provided on-chip in the pin internal circuit, we have taken steps to prevent incorrect AGC operation due to inter-pin leakage currents.

Continued on next page.

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No. 4715-7/21

LA1193M, 1193V

Pin No. Function Equivalent circuit Note

14 15 18 19

N-AGC input

IF AMP bypass IF AMP input IF AMP output IF AMP gain adjust

RF AGC output

IF, AGC, V

Keyed AGC input

Since the DC cut capacitor is provided on-chip in the pin internal circuit, we have taken steps to prevent incorrect AGC operation due to inter-pin leakage currents.

IF gain: 25 dB Input and output impedances of 330 Ω The IF gain can be adjusted by inserting a resistor between pins 17 and 19. The gain is at its maximum when there is no resistor inserted.

MOSFET Second gate control

Controls the narrow AGC.

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