AN26261A

Features:

·Direct modulation transmit RFIC for dual band WCDMA with the on-chip VCOs.
·Transmit frequencies : 1920 MHz to 1980 MHz, 830 MHz to 855 MHz.
·Current consumption : 45 mA (Typ.)


Application

· WCDMA single, dual band terminals.


Specifications

A No.	Parameter	Symbol	Rating	Unit	Note
1	Supply voltage	VCC	0 to 3.6	V	*1
2	Supply current	ICC	64.5	mA	-
3	Power dissipation	PD	59.8	mW	*2
4	Operating ambient temperature	Topr	25 to +85		*3
5	Storage temperature	Tstg	55 to +125		*3
6	DC input voltage	VI	0 to VCC + 0.3 and less than 3.6	V	*1,*4
7	I,Q DC differential input voltage	VID	2 to 2	V	*1,*5

Note) *1: The supply voltage is shown the value under the condition which not exceeds the absolute maximum ratings and the power dissipation.
*2: The power dissipation is shown the value at T_a = 85°C for the independent (non-mounted) IC package without a heat sink.
     In case of use this IC, please refer to the P_D-T_a diagram of the package standard and use under the condition not exceeding the allowable value.
*3: Except for the power dissipation, operating ambient temperature, and storage temperature, all ratings are for T_a = 25°C.
*4: SCLK, SDATA, SDEN, RESET, REF_CLK, I_IN_P, I_IN_N, Q_IN_P, Q_IN_N, VGA_CNT pins.
*5: I_IN_P to I_IN_N or Q_IN_P to Q_IN_N differential input voltage.


Description

·AN26261A is WCDMA transmit RFIC that is planned to use for dual band WCDMA in Japan.
   AN26261A is consist of direct conversion modulator, voltage gain control amplifiers, VCOs and synthesizer.
   There is able to build the WCDMA transmit RF block with external PA, pre-driver with gain control amplifier and RF-ilter.
·This IC is expecting to use with the WCDMA receive IC; AN26260A.