LA1140

Features: `Versatile mutinga) When muting operation is performed under a weak signal strength, an attenuation slope of the audio output against the input signal strength variations can be set at any given value.b) Maximum muting attenuation can be selected to be approximately 6 to 40 dB.c) Input s...

product image

LA1140 Picture
SeekIC No. : 004390187 Detail

LA1140: Features: `Versatile mutinga) When muting operation is performed under a weak signal strength, an attenuation slope of the audio output against the input signal strength variations can be set at any...

floor Price/Ceiling Price

Part Number:
LA1140
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

SeekIC Buyer Protection PLUS - newly updated for 2013!

  • Escrow Protection.
  • Guaranteed refunds.
  • Secure payments.
  • Learn more >>

Month Sales

268 Transactions

Rating

evaluate  (4.8 stars)

Upload time: 2014-10-24

Payment Methods

All payment methods are secure and covered by SeekIC Buyer Protection PLUS.

Notice: When you place an order, your payment is made to SeekIC and not to your seller. SeekIC only pays the seller after confirming you have received your order. We will also never share your payment details with your seller.
Product Details

Description



Features:

`Versatile muting
a) When muting operation is performed under a weak signal strength, an attenuation slope of the audio output against the input signal strength variations can be set at any given value.
b) Maximum muting attenuation can be selected to be approximately 6 to 40 dB.
c) Input signal strength level which actuates the muting circuit can be set freely.
`High limiting sensitivity (25 dB typ. with muting off) provides a fine quieting characteristic.
`High S/N (78 dB typ.)
`Low distortion (0.05% typ.) avaiable if used with double-tuned circuits.
`Good AMR (63 dB typ. with 6 stages of differential IF amplifiers).
`Signal meter drive output proportional to the input signal strength in dB (suitable to control multiplex IC LA3370).
`Clamped (±VBE) AFC output, bandwidth adjustable.
`Delayed AGC output for front end circuit.
`Small space factor due to single-ended package employed.
`3 mm pitch of pin terminals permitting ease-to-write PC board pattern.






Specifications

Parameter Symbol Conditions Ratings Unit
Maximum supply voltage VCC max Pin 12 16 V
Maximum supply current ICC max Pin 12 40 mA
Allowable power
dissipation
Pd max Ta = 25°C 640 mW
Ta = 70°C 460 mW
Input voltage VIN Pin 1 to 2 ±1 Vp-p
Flow-in current I2 Pin 2 ±0.2 mA
I3 Pin 3 ±0.2 mA
I6 Pin 6 2 mA
Flow-out current I5 Pin 5 1 mA
I13 Pin 13 2 mA
I14 Pin 14 2 mA
I15 Pin 15 1 mA
I16 Pin 16 1 mA
Operating temperature Topr 20 to +70 °C
Storage temperature Tstg 40 to +125 °C


Absolute maximum ratings
VCC [V] 8
Electrical characteristics
ICC [mA] 25





Description

The LA1140 is an IF system IC designed for FM car stereo receivers. It features versatile muting characteristics and allows receiver designers to realize the muting performance according to their design concept. Since the muting characteristics can be varied with a switch or a semi-fixed resistor, DX-Local switching will be accomplished with ease.






Customers Who Bought This Item Also Bought

Margin,quality,low-cost products with low minimum orders. Secure your online payments with SeekIC Buyer Protection.
View more