SLWS132 datasheet(35/46 Pages) TI

35 / 46 page

GRAYCHIP, INC.

- 30 -

APRIL 27, 1999

GC4014 QUAD RECEIVER CHIP

DATA SHEET REV 0.6

This document contains information which may be changed at any time without notice

6.5

AC CHARACTERISTICS

Table 10: AC Characteristics (-40 TO +85oC Ambient, unless noted)

PARAMETER

SYMBOL

3.1V to 3.5V

UNITS

NOTES

MIN

MAX

Clock Frequency

FCK

Note 5

MHz

2, 3

Clock low period (Below VIL)tCKL

6ns

Clock high period (Above VIH)tCKH

6ns

Clock rise and fall times (VIL to VIH)tRF

2ns

Input setup before CK goes high

(AIN, BIN, CIN, DIN, or SI)

tSU

2ns

Input hold time after CK goes high

tHD

2ns

Data output delay from rising edge of CK.

(AOUT, BOUT, COUT, DOUT, SFS, SCK, RDY, or SO)

tDLY

Note 1

Note 2

Control Setup before both CE, WR or RD go low (See Figure 2.0)

tCSU

2, 8

Control hold after CE, WR or RD go high (See Figure 2.0)

tCHD

2, 8

Control strobe (CE or WR) pulse width (Write operation, See

Figure 2.0)

tCSPW

2, 8

Control output delay CE and RD low to C (Read Operation, See

Figure 2.0

tCDLY

2, 6, 8

Control tristate delay after CE and RD go high (See Figure 2.0)

tCZ

Quiescent supply current

(VIN=0 or VCC, FCK = 1KHz or POWER_DOWN=1)

ICCQ

7mA

Supply current

(FCK =64MHz, N=8)

ICC

400

2, 7

Notes:

1. Typical and not directly tested. Verified on initial part evaluation.

2. Each part is tested at 85 deg C for the given specification.

3. The chip may not operate properly at clock frequencies below MIN and above MAX.

4. Capacitive output load is 20pf. Delays are measured from the rising edge of the clock to the output level rising

above VIH or Falling below VIL.

5. The minimum clock rate must satisfy FCK/(4N) > 1KHz.

6. Capacitive output load is 80pf.

7. Current changes linearly with voltage and clock speed:

where A is the number of active channels (0 to 4) and N is the CIC decimation ratio.

8. See timing diagram in Figure 2 and description in Section 3.1.

Icc (MAX)

VCC

3.3

------------



 FCK

50M

-----------





A 29

320

---------





+mA

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