Datasheet KT0803L (KT Micro) - 2

KT0803L 1 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
2 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 Min Nom Max Units Condition
FM Frequency Range Ftx Pin 16 70 108 MHz Current Consumption IVDD Pin 4 with PA (power amp.) at
default power
- 17 mA
mode (PA_bias = 0, RFGAIN[3:0]=1111)
Standby Current Istand Pin 4 - 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 Vcm Pin 6,7 0 0.8 1.8 V Voltage when DC-coupled 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 6, 7 120 150 180 kΩ Input Capacitance (Audio Input) Cin Pin 6, 7 0.5 0.8 1.2 pF Audio Input Frequency Band Fin Pin 6, 7 20 - 15k Hz Transmit Level Vout 96 103 113 dBµV Channel Step STEP - 50 kHz Pilot Deviation 7.5 15 kHz Audio Deviation 75 112.5 kHz Frequency Response Mono,-3dB, ΔF=60kHz, 30 15k Hz 50/75μs pre-emphasis Pre-emphasis Time Constant Tpre PHTCNST = 1 - 50 - µs PHTCNST = 0 - 75 - µs Crystal/External Clock CLK Input clock 32.768 40,000 KHz 2-wire I2C Clock SCL Pin 14 0 100 400 kHz High Level Input Voltage VIH Pin 8, 9, 10, 13, 14 0.75 x IOVDD - V IOVDD + 0.25 Low Level Input Voltage VIL Pin 8, 9, 10, 13, 14 0.25 x - 0.25 - V IOVDD Copyright ©2010, KT Micro, Inc. 2