15

Specification ......

Characteristics

See Note

Min.

Typ.

Max.

Unit

Receive Parameters

Rx Amplifier -

Input Impedance

1.0

-

-

M

Ω

Output Impedance

7

-

10.0

-

k

Ω

Voltage Gain

-

50.0

-

dB

Rx Filter Signal Input Level

8, 11

0.7

1.0

1.3

V p-p

Rx Time Delay

9

-

-

3.0

bit-periods

On-Chip Xtal Oscillator

R

IN

10.0

-

-

M

Ω

R

OUT

12

-

50.0

-

k

Ω

Voltage Gain

12

-

25.0

-

dB

Notes

1. Not including current drawn from the FX589 pins by external circuitry. See Absolute Maximum Ratings.

2. For V

3

For a load of 10k

Ω or greater. Tx PS input at logic “0”; Tx Enable = “1”.

4. Data pattern of “1111000011110000 ..”

5. Measured between the rising edge of ‘Tx Clock’ and the centre of the corresponding bit at ‘Tx Out.’

6. Time between the falling edge of ‘Tx PS’ and the ‘Tx Out’ voltage stabilising to normal output levels.

7. For a load of 10k

Ω or greater. Rx PS input at logic “0”.

8. For optimum performance, measured at the ‘Rx Feedback’ pin for a “1111000011110000 ...” pattern.

9. Measured between the centre of bit at ‘Rx Signal In’ and corresponding rising edge of the ‘Rx Clock’.

10. Timing for an external clock input to the Xtal/Clock pin.

11. 'Typical' level shown is at V

12. Small signal measurement at 1.0kHz with no load on Xtal output.

13. Data rate may be extended to 80kb/s at BT = 0.5 and V

Xtal may be used, care must be taken with the external components.