LV2285VB_11 Datasheet, PDF (2/11 Pages) Sanyo Semicon Device – FM transmitter IC with Stereo Modulation, Auto Sleep Function

LV2285VB
Recommended Operating Conditions at Ta = 25°C
Parameter
Recommended Supply voltage
Operating supply voltage
Symbol
VCC
VCC op
Pin 6
Pin 6
Conditions
Ratings
Unit
3.3
V
2.8 to 5.5
V
Electrical Characteristics at Ta = 25°C, VCC = 3.3V, L/R input = 1kHz, 425mVrms, I²C bits = Initial
Parameter
Symbol
Conditions
Ratings
min
typ
max
Circuit current
Standby current
Audio and MPX Block
ICC
ISTB
Pin 6 (No signal)
Pin 6 (No signal, I²C”EN”=”0”)
8
10
40
60
Minimum audio input
Maximum audio input
Audio input frequency
VAMIN
VAMAX
FAF
Pin 1 and 24 input
Pin 1 and 24 input
Pin 1 and 24 input
30
900
20
15k
Channel separation
SEP
Pin 7, composite output, L>R, R>L
20
40
Channel balance
CB
Pin 7, composite output
-2
0
+2
Total harmonic distortion
Pilot tone output level
THD
PMOD
Pin 7, composite output
I²C bits “ST”=”1”, “PILOT“=”1”
0.1
0.3
0.5
0.85
1.2
Composite output level
Audio mute
MPXOUT
MUTE
I²C bit “MUTE”=”1”
2.9
3.8
4.6
30
35
Audio attenuation step
ATT(1)
ATT[2:0] = ”111” − “110”
2.3
ATT(2)
ATT[2:0] = ”110” − “101”
2.2
ATT(3)
ATT[2:0] = ”101” − “100”
2.8
ATT(4)
ATT[2:0] = ”100” − “011”
2.3
ATT(5)
ATT[2:0] = ”011” − “010”
4.3
ATT(6)
ATT[2:0] = ”010” − “001”
3.3
ATT(7)
ATT[2:0] = ”001” − “000”
1.6
Crystal Oscillator Frequency(1) FXOSC(1)
Pin 21 and Pin22
76
Audio control Block
Audio Control Frequency
FCONT
Pin 2 and 23 input
7.5
Audio Control input
VCONT
Pin 2 and 23 input
1.2
Auto sleep Block
Turn-off time
TOFF
The time from no signal to turn-off. If the VCC
45
70
300
voltage is supplied, LV2285VB maintains I²C
data. Ctc (Pin 20) = 2.2μF
PLL Block
I²C input “High” voltage
I²C input “Low” voltage
RF input frequency
VH
VL
FPLL
Step = 100kHz, See table 2
0.8VCC
-0.3
70
VCC+0.3
0.2VCC
110
Crystal Oscillator frequency
FXOSC(2)
Pin 16
16
-
External Clock Frequency
FEXT
CP output current
ICP
RF Block
• External clock injection to Pin 16 instead of
16MHz crystal oscillation.
• When the LSI is standby mode, external
clock should be stop.
CP voltage = 1.4V
1
24
30
RFoutput
RF output adjustment step
RF frequency
I²C Block
I²C input switch
RFOUT
RFSTEP
FRF
I2CSW *
* Use case ( I²C I/F ) : Please set Pin 19 = High.
f = 98MHz, RF[2:0] = ”011”, Pin 12 output
RF[2:0] = ”000” to “111”, totally 8 steps.
100kHz step
Input to Pin 2/23 : Audio control I/F
Input to Pin 17/18 : I²C I/F
109
0.3
70
-0.3
0.8VCC
112
115
0.9
1.4
110
0.2VCC
VCC+0.3
Unit
mA
μA
mVrms
mVrms
Hz
dB
dB
%
mVpp
mVrms
dB
dB
dB
dB
dB
dB
dB
dB
kHz
kHz
Vp-p
sec
V
V
MHz
MHz
MHz
μA
dBμV
dB
MHz
V
V
No.A1494-2/11