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Copyright
©2009, KT Micro, Inc.
2
KT0803K
Operation Condition
Table 1: Operation Condition
Parameter
Symbol
Operating Condition
Min
Typ
Max
Units
1.8V Analog Supply1
VDD
Relative to GND
1.6
1.8
2.0
V
IO/Regulator Supply
IOVDD
Relative to GND
1.6
3.6
V
Operating Temp
TA
Ambient Temperature
0
25
70
°C
Note: 1. No external voltage should be applied to this supply. Decoupling cap should be used instead
Specifications and Features
Table 2: FM Transmitter Functional Parameters (Unless otherwise noted TA = 0-70 oC,
IOVDD=1.6~3.6 V, Fin = 1 kHz)
Parameter
Symbol
Test/Operating
Condition
Min
Nom
Max
Units
FM Frequency Range
Ftx
Pin 16
76
108
MHz
Current Consumption
IVDD
Pin 4 with PA (power
amp.) at default power
mode (PA_bias = 0,
RFGAIN[3:0]=1111)
-
17
mA
Standby Current
Istand
Pin 4
-
0.1
1
μA
Signal to Noise Ratio
SNR
Vin = 0.7 Vp-p, Gin = 0
-
60
-
dB
Total Harmonic Distortion
THD
Vin = 0.7 Vp-p, Gin = 0
-
0.3
%
Left/Right Channel Balance
BAL
Vin = 0.7 Vp-p, Gin = 0
-0.2
-
0.2
dB
Stereo Separation (Left<->Right)
SEP
Vin = 0.7 Vp-p, Gin = 0
40
-
dB
Sub Carrier Rejection Ratio
SCR
Vin = 0.7 Vp-p, Gin = 0
-
-
60
dB
Input Swing1
Vin
Single-ended input
-
0.35
1.4
VRMS
PGA Range for Audio Input
Gin
-12
0
12
dB
PGA Gain Step for Audio Input
Gstep
1
4
dB
Required Input Common-Mode
Voltage when DC-coupled
Vcm
Pin 5,7
0
0.8
1.8
V
Power Supply Rejection2
PSRR
IOVDD = 1.9 ~ 3.6 V
40
-
-
dB
Ground Bounce Rejection2
GSRR
IOVDD = 1.9 ~ 3.6 V
40
-
-
dB
Input Resistance (Audio Input)
Rin
Pin 5, 7
120
150
180
kΩ
Input Capacitance (Audio Input)
Cin
Pin 5, 7
0.5
0.8
1.2
pF
Audio Input Frequency Band
Fin
Pin 5, 7
20
-
15k
Hz
Transmit Level
Vout
96
103
113
dBµV
Channel Step
STEP
-
50
kHz
Pilot Deviation
7.5
15
kHz
Audio Deviation
75
150
kHz
Frequency Response
Mono,-3dB, ΔF=60kHz,
50/75μs pre-emphasis
30
15k
Hz
SIG_PROC<1> = 1
-
50
-
µs
Pre-emphasis Time Constant
Tpre
SIG_PROC<0> = 0
-
75
-
µs
Crystal/External Clock
CLK
Input clock
32.768
KHz
2-wire I2C Clock
SCL
Pin 14
0
100
400
kHz
High Level Input Voltage
VIH
Pin 4, 8, 12, 14, 16
0.75 x
IOVDD
-
IOVDD
+ 0.25
V
Low Level Input Voltage
VIL
Pin 4, 8, 12, 14, 16
- 0.25
-
0.25 x
IOVDD
V
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