AK2048D データシートの表示（PDF） - Asahi Kasei Microdevices

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AK2048D

2M CMI Transceiver

Asahi Kasei Microdevices 

ASAHI KASEI

[AK2048]

TRANSMITTER

Parameter

Symbol min typ max Unit

Comments

Va 2.55 3.3 3.90

Refer to Fig.1, 2

Output signal level

VpeakH

4.05 Vp-p

VpeakL 2.55

Rise/Fall Time

Tr, Tf

20

50

ns

Pulse duty of transmit output

43

50

57

%

Delay time from TDATA to TXA,TXB

Ttd

1

Bit

*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)

Refer to Fig.1, 2

*1), *2)

Refer to Fig.3

*3)Refer to Fig.4

TXA

56 Ω

TXB

56 Ω

110 Ω

Transmit output amplitude

is specified at this point.

(Va, VpeakH, VpeakL)

Fig.1 Measurement circuit

VpeakH

Va VpeakL

0.8Va

MS0073-E-00

Tr,Tf

Fig.2 Rise and fall times

7

2001/01

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