Sanyo ENA0973A Bi-cmos ic fm transmitter ic with stereo modulation Datasheet

Ordering number : ENA0973A
Bi-CMOS IC
LV2282VA
FM Transmitter IC with
Stereo Modulation
Overview
The LV2282VA is an FM Transmitter IC. MPX block makes stereo modulated, composite signal from L and R sound
inputs. RF VCO include FM modulation function. Audio AGC function keeps FM modulation well regulated. PLL
synthesizer determines RF output frequency with I2C or 3-bit parallel control (selectable).
Application
• Portable Memory Player
• Portable HDD Player
• Wireless Headphone
Features
• (Audio)
• (MPX)
• (RF)
• (PLL)
AGC amplifier
Pilot tone system stereo modulation, audio attenuation
VCO, driver amplifier
70 to 110MHz, 100kHz step available, I2C bus control, 3-bit parallel control
Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter
Symbol
Conditions
Ratings
Pin 4, 11, 15
Unit
Maximum supply voltage
VCC max
5.0
Maximum input voltage
VIN max
VCC+0.3
V
Minimum input voltage
VIN min
-0.3
V
Allowable power dissipation
Pd max
500
mW
Ta ≤ 85°C, Mounted on a specified board*
V
Operating temperature
Topr
-40 to +85
°C
Storage temperature
Tstg
-55 to +150
°C
* Specified board : 114.3mm×76.1mm×1.6mm, glass epoxy circuit board.
Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to
"standard application", intended for the use as general electronics equipment (home appliances, AV equipment,
communication device, office equipment, industrial equipment etc.). The products mentioned herein shall not be
intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace
instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety
equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives in case
of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any guarantee
thereof. If you should intend to use our products for applications outside the standard applications of our
customer who is considering such use and/or outside the scope of our intended standard applications, please
consult with us prior to the intended use. If there is no consultation or inquiry before the intended use, our
customer shall be solely responsible for the use.
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.
D2607 MS 20071211-S00001 / D1207 MS PC No.A0973-1/10
LV2282VA
Recommended Operating Conditions at Ta = 25°C
Parameter
Symbol
Conditions
Ratings
Unit
Recommended supply voltage
VCC
Pin 4, 11, 15
3.3
V
Operating supply voltage range
VCC op
Pin 4, 11, 15
2.6 to 4.0
V
AC Characteristics Ta = 25°C, VCC = 3.3V, I2C bits = Default state, L and R input = 1kHz, 20mVrms,
unless otherwise noted
Parameter
Symbol
Ratings
Conditions
min
Circuit current
ICC
No input signal, Pin 4, 11, 12, 15 current
Standby current
ISTB
No input signal, I2C bit “STB” = “1”,
typ
Unit
max
10
15
mA
10
µA
Pin 4, 11, 12, 15 current
Audio and MPX Blocks
Parameter
Symbol
Ratings
Conditions
min
Maximum audio input
typ
Unit
max
VA max
Pin 1 and 24 input
Audio input frequency
FAF
Pin 1 and 24 input
20
Channel separation
SEP
Pin 5, composite output, L→R, R→L
20
30
Pin 5, composite output
-2
0
2
Channel balance
Total harmonic distortion
Maximum gain
AGC gain range
Pilot tone output level
Composite output level
Audio attenuation
Crystal oscillator frequency (1)
CB
THD
100
15k
Hz
dB
dB
0.5
1.5
%
GMAX
Pin 5/Pin 1 and 24
6
9
12
dB
GR
Pin 5/Pin 1 and 24
9
11
13
dB
PMOD
Pin 5, composite output
mVrms
I2C
bits “PA1/PA0” =”01”
MPXOUT
ATT
I2C bit “ATT” = “1”
FXOSC (1)
Pin 21 and Pin 22
2
4
6
mVrms
19
30
48
mVrms
25
dB
76
kHz
RF Blocks
Parameter
Symbol
Ratings
Conditions
min
typ
Unit
max
RF output (1)
RFOUT (1)
f = 90MHz, Pin 12 output
109
112
115
dBµV
RF output (2)
RFOUT (2)
f = 90MHz, Pin 14 output
97
100
103
dBµV
RF frequency
FRF
100kHz step
70
110
MHz
PLL Blocks
Parameter
Symbol
Ratings
Conditions
min
typ
Unit
max
I2C input “High” voltage
VH
0.8VCC
VCC+0.3
V
I2C input “Low” voltage
VL
-0.3
0.2VCC
V
70
110
MHz
88.1
90.9
MHz
RF input frequency 1
FPLL1
With I2C 11bit
Step = 100kHz, See table 1
RF input frequency 2
FPLL2
With 3bit Parallel
Step = 400kHz, See table 3
Crystal oscillator frequency (2)
CP output current
FXOSC (2)
ICP
Pin 17
16
MHz
CP voltage = 1.65V
30
µA
No.A0973-2/10
LV2282VA
Package Dimensions
unit : mm (typ)
3287
6.5
24
0.5
6.4
4.4
13
12
1
0.5
0.15
0.22
0.1
(1.3)
1.5max
(0.5)
SANYO : SSOP24(225mil)
Pin Assignment
L-INPUT
1
24 R-INPUT
LEVEL DET
2
23 REF
S/P CTRL
3
22 76K OSC IN
MPX VCC
4
21 76K OSC OUT
COMPOSITE OUT
5
20 AS/D2
GND
6
19 SDA/D1
CP OUT
7
18 SCL/D0
GND
8
17 XTAL
GND
9
16 GND
VCO 10
RF VCC 11
RF OUT (C) 12
15 PLL VCC
14 REF OUT (E)
13 GND
No.A0973-3/10
LV2282VA
R-INPUT
REF
76K OSC IN
76K OSC OUT
AS/D2
SDA/D1
SCL/D0
XTAL
GND
PLL VCC
RF OUT (E)
GND
Block Diagram
24
23
22
21
20
19
18
17
16
15
14
13
Regulator
X'tal
OSC
X'tal OSC
Shift Register
1/2
1/160
MPX
1/2
ATT
LEVEL
DET
Phase DET
P-Counter
VCO
10
Driver Amp
4
5
6
7
8
9
LEVEL DET
S/P CTRL
MPX VCC
COMPOSITE OUT
GND
CP OUT
GND
GND
SDA
SCL
11
12
RF OUT (C)
3
RF VCC
2
VCO
1
L-INPUT
Charge Pump
1µF
24
23
76KHz
22
21
1
2
3
16MHz
RF OUT (E)
VCC
PLL VCC
3.3kΩ
33kΩ D0
24kΩ
100nF
b
R-INPUT
+
33kΩ
AS/D2
SW1
a
3.3kΩ
33kΩ D1
AC Testing Circuit
SW7
a
24Ω
100nF
0Ω
b
51Ω
1nF
20
19
18
17
16
15
14
13
5
6
7
8
9
10
11
12
SG INPUT
1µF
a
R-OUT
L-OUT
Stereo DEC
100nF
240Ω RF OUT (C)
SW4
b
270nH
COMP-OUT
100nF
MPX VCC
b
33kΩ
SW3
a
4
S/P CTRL
b
R-INPUT
+
1µF
VAGC
SW2
a
RF VCC
100nF
SW5
SW6
No.A0973-4/10
LV2282VA
Pin Description
Pin No.
1
Pin Name
L-INPUT
DC Voltage
Description
(V)
2.8
Left channel input. AC coupling
capacitance is required.
Equivalent Circuit
4
10kΩ
10kΩ
1
24
6
2
LEVEL DET
-
For AGC time constant. Capacitance is
required.
4
1MΩ
2
6
3
S/P CTRL
-
Connect to GND for serial (I2C) data input.
4
Connect to VCC for parallel data input.
3
CMOS Logic Input
6
4
MPX VCC
3.3
VCC for Audio frequency and MPX
5
COMPOSITE
1.7
Stereo modulated output.
Blocks.
4
OUT
5
6
6
GND
0
7
CP OUT
-
Charge pump current output.
11
30µA
7
30µA
8
Continued on next page.
No.A0973-5/10
LV2282VA
Continued from preceding page.
Pin No.
Pin Name
DC Voltage
Description
(V)
8
GND
9
GND
0
10
VCO
2.8
Equivalent Circuit
0
Transistor BASE terminal for Colpitz
oscillator.
11
10
9
11
RF VCC
3.3
VCC for RF blocks.
12
RF OUT (C)
3.3
Collector output.
11
12
14
13
13
GND
14
RF OUT (E)
2.0
0
Emitter follower output.
15
PLL VCC
3.3
VCC for digital blocks.
16
GND
0
17
XTAL
1.5
16MHz Crystal is needed for PLL
reference frequency.
See Pin 12.
15
17
16
18
SCL/D0
-
I2C clock input / Parallel LSB input.
15
CMOS Logic Input
18
16
19
SDA/D1
-
I2C data input / Parallel input.
15
19
CMOS Logic Input
16
Continued on next page.
No.A0973-6/10
LV2282VA
Continued from preceding page.
Pin No.
20
Pin Name
AS/D2
DC Voltage
Description
(V)
-
Equivalent Circuit
I2C address selection (1bit)/Parallel MSB
input.
15
20
CMOS Logic Input
16
21
76K OSC
0.8
OUT
For stereo modulator pilot signal and sub
carrier. 76kHz crystal should be
15
connected between Pin 21 and Pin 22
21
1kΩ
1MΩ
22
1kΩ
16
22
76K OSC IN
0.7
23
REF
1.2
See Pin 21
See Pin 21
AC decoupling capacitance is required.
External 24kΩ makes internal regulated
4
current.
22
6
24
R-INPUT
2.8
Right channel audio input. AC coupling
See Pin 1
capacitance is required.
No.A0973-7/10
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
Name
Bit
Byte
ACK
MSB (1)
Address Byte
1
Control Byte 1
2
Control Byte 2
3
LSB
AD7
AD6
AD5
AD4
AD3
AD2
AS
R/W
1
1
0
1
0
0
1/0
0
P10
P9
P8
P7
P6
P5
P4
P3
0
1
1
0
1
1
1
0
P2
P1
P0
PA1
PA0
TS
STB
ATT
0
0
1
0
1
0
0
0
A
A
A
(1) : MSB is transmitted first.
Table 2. I2C Write Mode Description
Bit
Name
AD7 – AD2
Address bit
AS
Address Select
Description
LV2282VA requires address bits.
AS bit is decided by Pin 20.
Connecting to VCC = “1”, to GND = “0”
R/W
Read/Write
A
Acknowledge
“0” for Write mode (Write mode only).
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
ATT
Audio attenuator
“1” for Standby mode. Default state = “0” for normal operation.
“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)
D1 (Pin 18)
Frequency (MHz)
0
0
0
0
88.1
1
0
0
1
88.5
2
0
1
0
88.9
3
0
1
1
89.3
4
1
0
0
89.7
5
1
0
1
90.1
6
1
1
0
90.5
7
1
1
1
90.9
No.A0973-8/10
LV2282VA
I2C Bus Operation
SDA
Serial I/F Bus
Controller
(Master)
Control Byte1
Control Byte2
7 6 5 4 3 2 1 0
7 6 5 4 3 2 1 0
Address Byte
Master
S 6 5 4 3 2 1 0 W
MSB
MSB First
LV2282VA
(Slave)
SCL
LSB MSB
LSB MSB
A
Slave
LSB
A
S → Start condition
F
A
F → Stop condition
A → Acknowledge
Time chart
tBUF
tHD ; STA
tSU ; DAT
tSU ; STO
SDA
SCL
Start
condition
tLOW
tR
tHD ; DAT
tHIGH
Stop
condition
tF
Table 4. Timing specification
Parameter
Ratings
Symbol
min
SCL clock frequency
Bus free time between a STOP and START condition
Hold time START condition
LOW period of the SCL clock
fSCL
typ
Unit
max
100
kHz
tBUF
4.7
µs
tHD ; STA
4.0
µs
tLOW
4.7
µs
tHIGH
4.0
µs
Data hold time
tHD ; DAT
0.0
µs
Data set-up time
tSU ; DAT
250
HIGH period of the SCL clock
Rise time of both SDA and SCL signals
Fall time of both SDA and SCL signals
Set-up time for STOP condition
tR
tF
tSU ; STO
ns
1000
300
4.0
ns
ns
µs
I2C Bus AC Characteristics : Temp=25°C VCC = 3.3V
Note : I2C Bus is a registered trademark of the Philips Co..
No.A0973-9/10
LV2282VA
23
76KHz
22
21
SCL
24
SDA
R-INPUT
AS
Application Circuit
20
19
18
17
16
Regulator
15
14
13
X'tal
OSC
X'tal OSC
Shift Register
1/2
1/160
MPX
ATT
LEVEL
DET
1/2
Phase DET
P-Counter
VCO
8
10
Driver Amp
Charge Pump
1
2
3
4
5
6
7
9
11
12
L-INPUT
VCC
+
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products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition
ranges, or other parameters) listed in products specifications of any and all SANYO Semiconductor Co.,Ltd.
products described or contained herein.
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This catalog provides information as of December, 2007. Specifications and information herein are subject
to change without notice.
PS No.A0973-10/10
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