Copyright

©2010, KT Micro, Inc.

2

KT0806L

1 Operation Condition

Table 1: Operation Condition

Parameter

Symbol

Operating Condition

Min

Typ

Max

Units

IO/Regulator Supply

IOVDD

Relative to GND

1.6

3.6

V

Ambient Temperature

TA

-30

25

70

℃

2 Specifications and Features

Table 2: FM Transmitter Functional Parameters (Unless otherwise noted TA = -30-70 ℃,

IOVDD=1.6~3.6 V, Fin = 1 KHz)

Parameter

Symbol

Test/Operating

Condition

Min

Nom

Max

Units

FM Frequency Range

Ftx

Pin 12

70

108

MHz

Current Consumption

IVDD

Pin 16 with PA (power

amp.) at default power

mode (PA_bias = 0,

RFGAIN[3:0]=1111)

-

17

mA

Standby Current

Istand

Pin 16

-

0.1

1

μA

Signal to Noise Ratio

SNR

Vin = 1 Vp-p, Gin = 0

-

66

-

dB

Total Harmonic Distortion

THD

Vin = 1 Vp-p, Gin = 0

-

0.3

%

Left/Right Channel Balance

BAL

Vin = 1 Vp-p, Gin = 0

-0.2

-

0.2

dB

Stereo Separation (Left<->Right)

SEP

Vin = 1 Vp-p, Gin = 0

40

-

dB

Sub Carrier Rejection Ratio

SCR

Vin = 1 Vp-p, Gin = 0

-

-

60

dB

Input Swing1

Vin

Single-ended input

-

0.35

2

VRMS

PGA Range for Audio Input

Gin

-15

0

12

dB

PGA Gain Step for Audio Input

Gstep

1

4

dB

Required Input Common-Mode

Voltage when DC-coupled

Vcm

Pin 2,4

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 2, 4

120

150

180

kΩ

Input Capacitance (Audio Input)

Cin

Pin 2, 4

0.5

0.8

1.2

pF

Audio Input Frequency Band

Fin

Pin 2, 4

20

-

15k

Hz

Transmit Level

Vout

96

103

113

dBµV

Channel Step

STEP

-

50

KHz

Pilot Deviation

7.5

15

KHz

Audio Deviation

75

112.5

KHz

Frequency Response

Mono,-3dB, ΔF=60KHz,

50/75μs pre-emphasis

20

15,000

Hz

PHTCNST = 1

-

50

-

µs

Pre-emphasis Time Constant

Tpre

PHTCNST = 0

-

75

-

µs

Crystal/External Clock

CLK

Input clock

32.768

40,000

KHz

2-wire I2C Clock

SCL

Pin 11

0

100

400

KHz

High Level Input Voltage

VIH

Pin 7, 8, 10, 11

0.75 x

IOVDD

-

IOVDD

+ 0.25

V

Low Level Input Voltage

VIL

Pin 7, 8, 10, 11

- 0.25

-

0.25 x

IOVDD

V

Notes:

1. Maximum is given on the condition of PGA gain = -15dB.

2. Fin = 20 ~ 15KHz.