ASAHI KASEI

[AK2048]

MS0073-E-00

2001/01

7

TRANSMITTER

Parameter

Symbol

min

typ

max

Unit

Comments

Va

2.55

3.3

3.90

VpeakH

4.05

Output signal level

VpeakL

2.55

Vp-p

Refer to Fig.1, 2

Rise/Fall Time

Tr, Tf

20

50

ns

Refer to Fig.1, 2

Pulse duty of transmit output

43

50

57

%

*1), *2)

Refer to Fig.3

Delay time from TDATA to TXA,TXB

Ttd

1

Bit

*3)Refer to Fig.4

*1) The duty cycle of TCLK 50%

±4%.

*2) Duty cycle = Tpwh / (Tpwh + Tpwl)

× 100%

*3) Signal output delay = (1bit logical delay) + (internal propagation delay)

TXA

TXB

110

Ω

Transmit output amplitude

is specified at this point.

(Va, VpeakH, VpeakL)

56

Ω

56

Ω

Fig.1 Measurement circuit

Fig.2 Rise and fall times

VpeakL

Va

VpeakH

0.8Va

Tr,Tf