MC68194(2006) View Datasheet(PDF) - ON Semiconductor

Part Name

Description

MFG CO.

MC68194
(Rev.:2006)

Carrier Band Modem (CBM)

ON Semiconductor 

MC68194

RXSYM0−RXSYM2,

SMREQ*

1.5 V

1.5 V

tsetup

TXCLK

thold

1.5 V

tTTL−

tTX period

0.5 V

tTTL+

2.5 V

1.5 V

(A) TXSYMX, SMREQ* Setup and Hold Timing to TXCLK

RXSYM0−RXSYM2,

SMIND*

RXCLK

1.5 V

1.5 V

tRXSYM delay

1.5 V

tRX period

(B) RXSYMX, SMIND* Delay Timing to RXCLK

XTAL1, XTAL2

2.5 V

2.5 V

tTXCLK delay

TXCLK

1.5 V

(C) TXCLK Delay Timing to XTAL1, XTAL2

Figure 9−1. AC Test Waveforms

CBM

TEST POINT

15 pF

INCLUDES JIG AND PROBE

CAPACITANCE

500 Ω

Figure 9−2. TTL, TXOUT, TXOUT*, Up* & Down* AC Test Load

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