LV2285VB_11 Datasheet, PDF (1/11 Pages) Sanyo Semicon Device – FM transmitter IC with Stereo Modulation, Auto Sleep Function

Ordering number : ENA1494A
LV2285VB
Bi-CMOS IC
FM transmitter IC with
Stereo Modulation, Auto Sleep Function
Overview
The LV2285VB is IC for FM transmitter. This IC is chiefly composed of the following block. MPX block for stereo
modulation, RFVCO block for FM modulation, and PLL block for RF output frequency. At the result, this IC achieves FM
transmitter with low power consumption by 1chip.
Additionally, the auto sleep function is installed. This function automatically switches the standby and active according to
the state of the audio input. It is possible to achieve a more dynamic electric power reduction as a result.
Feature
• The function necessary for FM transmission has been integrated into 1chip.
• The best low current consumption operation for portable application
• The auto sleep function to reduce more dynamic current consumption
• General I²C I/F and, SANYO original audio control I/F is installed
Functions
• Audio: Stereo modulation using pilot tone system, Audio attenuation
• RF: VCO, programmable gain driver amplifier
• PLL: 70MHz to 110MHz 100kHz step
• Bus control: I²C I/F , Audio control I/F
• Regulator: 2.8V LDO regulator, Auto sleep function
Specifications
Maximum Ratings at Ta = 25°C
Parameter
Symbol
Conditions
Maximum supply voltage
Maximum input voltage
VCC max
Vin max
Pin 6
Minimum input voltage
Vin min
Allowable power dissipation
Pd max
Ta ≤ 85°C, Mounted on a specified board.*
Operating temperature
Topr
Storage temperature
Tstg
* Specified board: 114.3mm × 76.1mm × 1.6mm, glass epoxy board.
Ratings
Unit
7.0
V
Vcc + 0.3
V
-0.3
V
500
mW
-10 to 85
°C
-55 to 150
°C
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"standard application", intended for the use as general electronics equipment (home appliances, AV equipment,
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Specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein stipulate
the performance, characteristics, and functions of the described products in the independent state, and are not
guarantees of the performance, characteristics, and functions of the described products as mounted in the
customer's products or equipment. To verify symptoms and states that cannot be evaluated in an independent
device, the customer should always evaluate and test devices mounted in the customer's products or
equipment.
51111 SY 20110428-S00003/62409 MS 20090615-S00012 No.A1494-1/11