AD7010

REV. B

–5–

PIN FUNCTION DESCRIPTION

SSOP Pin

Number

Mnemonic

Function

POWER SUPPLY

19

Positive power supply for analog section.

Positive power supply for digital section, both supplies should be externally tied together.

14, 18, 23

AGND

Analog ground for transmit section.

6

DGND

Digital ground for transmit section, both grounds should be externally tied together.

ANALOG SIGNAL AND REFERENCE

13

BYPASS

Reference decoupling output. A decoupling capacitor should be connected between this pin a

and AGND.

16, 17

ITx, ITx

Differential analog outputs for the I channel, representing true and complementary outputs

of the I waveform.

21, 20

QTx, QTx

Differential analog outputs for the Q channel, representing true and complementary outputs

of the Q waveform.

TRANSMIT INTERFACE AND CONTROL

7

MCLK

Master clock, digital input. This pin should be driven by a 2.688 MHz CMOS compatible

clock source in digital mode.

3

TxCLK

This is a digital output, transmit clock. This may be used to clock in transmit data at 42 kHz.

4

TxDATA

This is a digital input. This pin is used to clock in transmit data on the falling edge of TxCLK

at a rate of 42 kHz.

2

BIN

This is a digital input. This input is used to initiate the ramping up (BIN high) or down (BIN

low) of the I and Q waveforms.

24

BOUT

Burst out, digital output. This is the BIN input delayed by the pipeline delay, both digital and

analog, of the AD7010. This can be used to turn on and off the RF amplifiers in synchroniza-

tion with the I and Q waveforms.

1

POWER

Transmit sleep mode, digital input. When this goes low, the AD7010 goes into sleep mode,

drawing minimal current. When this pin goes high, the AD7010 is brought out of sleep mode

and initiates a self-calibration routine to eliminate the offset between ITx & ITx and the offset

between QTx & QTx.

12

READY

Transmit ready, digital output. This output goes high once the self-calibration routine is complete.

9, 11

MODE1,

Mode control, digital inputs. These are used to enter the AD7010 into three different

MODE2

operating modes, see Table I.

8, 10, 15, 22

NC

No Connects. These pins are no connects and should not be used as routes for other circuit signals.

SSOP PIN CONFIGURATION

POWER

BIN

TxCLK

TxDATA

V

DD

DGND

MCLK

MODE1

NC

BOUT

AGND

QTx

QTx

V

AA

AGND

ITx

ITx

AGND

BYPASS

1

2

3

7

24

23

22

18

8

9

10

17

16

15

11

12

14

13

4

5

21

20

619

TOP VIEW

(Not to Scale)

AD7010

NC

MODE2

READY

NC

NC