AK2403

MP

Cartesian Feedback Loop Transmitter

Cartesian Feedback Loop Transmitter

MP

Description

The AK2403 is a transmitter IC with the Cartesian Feedback Loop Linearization Technique.  The AK2403 realize high linearity by receiving feedback signal from an external Power Amplifier (PA) via a coupler.  The core circuit of Cartesian Feedback Loop consists of forward path part and feedback path part.
 The forward path consists of differential amplifier and I/Q modulator. And the feedback path consists of attenuator, demodulator, phase shifter and differential to single amplifier.  Since the AK2403 has a built- in DAC and PLL, the area of the system can be reduced.  The built-in PLL in the AK2403 can generate Local signal by using built-in VCO or external VCO.  The AK2403 can execute the DC offset calibration automatically by using the built-in DAC.
Narrow Band Radio Communication: 6.25kHz / 7.5kHz / 12.5kHz / 15kHz / 25kz / 50kHz / 100kHz / 150kHz / and so on.
Modulation Method: π/4 DQPSK / QPSK / 16QAM /64QAM
(Modulation / demodulation must be done externally. Modulation function is not installed)

Key Features

  • Cartesian Feedback Loop Linearization Technique

Applications

  •                                 Narrow Band Radio Communication, Analog / Digital Dual Mode Transceiver, Digital Radio System for Industrial Use, Public safety and Community / Emergency Radio System, Marine / Mobile Communication System
                                

Specifications

Part Number
AK2403
Description
Direct Conversion Tx
RF Frequency (MIN.) [MHz]
50
RF Frequency (TYP.) [MHz]

                                
RF Frequency (MAX.) [MHz]
1000
Current Consumption [mA]
280 with built - in VCO
Power Supply Voltage (MIN.) [V]
2.7
Power Supply Voltage (TYP.) [V]
3.0
Power Supply Voltage (MAX.) [V]
3.3
Other

                                
Operating Temperature [℃]
-40 to 85
Device Package
HWQFN
Number of Pins
68

Product Information

Part Status
MP
Pb Free
Yes
Halogen Free
Yes
MSL
MSL2
Packaging
TAPE
JEDEC Standard Packaging
Compliant
Minimum Order Quantity [pcs.]
1000
Replacement P/N

                                

Block Diagram

Block Diagram