
TLC8044
12-BIT ANALOG-TO-DIGITAL INTERFACE FOR
CHARGE-COUPLED DEVICE IMAGE SENSORS FOR SCANNERS
SLAS128 – JUNE 1997
5
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage, DVDD1, DVDD2, AVDD, VDD (see Note 1)
7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Digital inputs (see Note 1)
– 0.3 V to VDD + 0.3 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Analog inputs (see Note 1)
– 0.3 V to VCC + 0.3 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Digital outputs, maximum external voltage applied (see Note 1)
– 0.3 V to VCC + 0.3 V
. . . . . . . . . . . . . . . . . .
Reference input (see Note 1)
– 0.3 V to VDD + 0.3 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating temperature range, TA
0
°C to 70°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, Tstg
–50
°C to 150°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lead temperature, soldering, 10 sec
260
°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTE 1: Voltages applied to DVDD1 and DVDD2 are measured with respect to the DGND terminal. AVDD is measured with respect to the AGND
terminal. For the following specifications, unless otherwise noted, AGND and DGND are tied togather (and represent 0 volts) and are
referred to simply as GND. When the voltages applied to DVDD1, DVDD2, and AVDD are equal, they are referred to simply as VDD,unless
otherwise noted.
recommended operating conditions
total device
MIN
NOM
MAX
UNIT
Supply voltage, VCC
4.75
5.25
V
digital inputs
MIN
NOM
MAX
UNIT
High-level input voltage, VIH
0.9 VDD
V
Low-level input voltage, VIL
0.1 VDD
V
input multiplexer
TEST CONDITIONS
MIN
NOM
MAX
UNIT
Setup time, input video before MCLK
↑, tsu(V)
10
ns
Hold time, input video after MCLK
↑, th(V)
25
ns
Setup time, reset video before MCLK
↑, tsu(R)
CDS mode only
10
ns
Hold time, reset video after MCLK
↑, th(R)
CDS mode only
25
ns
serial interface
MIN
NOM
MAX
UNIT
Cycle time, MCLK, tcyc1
83.3
ns
Pulse duration, MCLK high, tw1(MCLKH)
37.5
ns
Pulse duration, MCLK low, tw2(MCLKL)
37.5
ns
Setup time, VSMP
↑ to MCLK↑,tsu(D)
10
ns
Hold time, MCLK
↑ to VSMP↓, th(D)
10
ns
Setup time, POC/PCS to MCLK
↓, tsu(P)
10
ns
Hold time, MCLK
↓ to POC/PCS, th(P)
30
ns
Cycle time, SCK, tcyc2
83.3
ns
Pulse duration, SCK high, tw3(SCKH)
37.5
ns
Pulse duration, SCK low, tw4(SCKL)
37.5
ns
Setup time, SDI to MCLK
↑, tsu(S)
10
ns
Hold time, MCLK
↑ to SDI change, th(S)
10
ns
Setup time, SCK
↑ to SEN↑, tsu(SCE)
20
ns
Setup time, SEN
↓ to SCK↑, tsu(SEC)
20
ns
Pulse duration, SEN high, tw(SEN)
50
ns