LV2282VA Datasheet, PDF (8/10 Pages) Sanyo Semicon Device – Bi-CMOS IC FM Transmitter IC with Stereo Modulation

LV2282VA
PLL Control by I²C Bus
The PLL block requires 3 bytes of I²C input as indicated below.
Table 1. I²C Bus Write Data Format
Bit
Name
Byte
MSB (1)
ACK
LSB
Address Byte
1
AD7
AD6
AD5
AD4
AD3
AD2
AS
R/W
A
1
1
0
1
0
0
1/0
0
Control Byte 1
2
P10
P9
P8
P7
P6
P5
P4
P3
A
0
1
1
0
1
1
1
0
Control Byte 2
3
P2
P1
P0
PA1
PA0
TS
STB
ATT
A
0
0
1
0
1
0
0
0
(1) : MSB is transmitted first.
Table 2. I²C Write Mode Description
Bit
Name
Description
AD7 – AD2
Address bit
LV2282VA requires address bits.
AS
Address Select
AS bit is decided by Pin 20.
Connecting to VCC = “1”, to GND = “0”
R/W
Read/Write
“0” for Write mode (Write mode only).
A
Acknowledge
P10 – P0
Programmable counter
11 bit Programmable counter. P0 = LSB, P10 = MSB.
RF Frequency = (P10×2¹⁰ + P9×2⁹ + ... P1×2¹ + P0) × 100kHz
Default state = “01101110001”
PA1 – PA0
Pilot Adjust
2 bit Pilot tone output level adjust. “PA1 PA0” is set “00” for no pilot tone (monaural mode), “01”, for
minimum output, “11” for maximum output.
Default state = “01”
TS
Test Mode
For IC Testing. Set “0” for normal operation.
TS for Counter testing. Default state = “0”
STB
Standby
“1” for Standby mode. Default state = “0” for normal operation.
ATT
Audio attenuator
“1” for Audio attenuation. Default state = “0” for normal operation.
PLL Control with Parallel Data Input
When Pin 3 S/P CTRL, is connected to VCC, PLL blocks requires 3 bit parallel data input as shown below. In parallel data
input mode, I²C controllable function in Table 2 is always set as (PA1, PA0, TS, STB, ATT) = (0, 1, 0, 0, 0).
Table 3. Parallel 3 bit Data Format
State
D2 (Pin 20)
D1 (Pin 19)
0
0
0
1
0
0
2
0
1
3
0
1
4
1
0
5
1
0
6
1
1
7
1
1
D1 (Pin 18)
0
1
0
1
0
1
0
1
Frequency (MHz)
88.1
88.5
88.9
89.3
89.7
90.1
90.5
90.9
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