GC1012A Datasheet, PDF (23/30 Pages) Texas Instruments – DIGITAL TUNER CHIP

GC1012A DIGITAL TUNER
DATA SHEET REV 0.1
4.0 SPECIFICATIONS
4.1 ABSOLUTE MAXIMUM RATINGS
Table 1: Absolute Maximum Ratings
PARAMETER
SYMBOL MIN
MAX UNITS NOTES
DC Supply Voltage
Input voltage (undershoot and overshoot)
Storage Temperature
Lead Soldering Temperature (10 seconds)
V_CC
V_IN
T_STG
-0.3
7
V
-0.7
V_CC+0.7
V
-65
150
°C
300
°C
Clock Rate
F_CK
1
KHz
1
Notes:
1. Below 1 KHz the keepalive circuit will power down the chip. If the keepalive circuit is disabled (bit 5,
address 7) and the clock is stopped, he chip will draw up to one Amp of power supply current for
approximately 10 seconds. After 10 seconds the current will go down to below 50 mAmps.
4.2 RECOMMENDED OPERATING CONDITIONS
Table 2: Recommended Operating Conditions
PARAMETER
SYMBOL MIN
MAX UNITS NOTES
DC Supply Voltage
Temperature Ambient, no air flow
Junction Temperature
V_CC
3.0
5.5
V
T_A
-40
+85
°C
1
T_J
140
°C
1
Notes:
1. Thermal management is required to keep T_J below MAX for full rate operation. See Table 3 below.
4.3 THERMAL CHARACTERISTICS
Table 3: Thermal Data
THERMAL
CONDUCTIVITY
Theta Junction to Ambient
Theta Junction to Case
SYMBOL
qja
qjc
GC1012A-CQ
2 Watts 4 Watts 6 Watts
29
16
15
8
7
6
GC1012A-PQ
2 Watts 4 Watts 6 Watts
18
11
10
4
4
4
UNITS
°C/W
°C/W
Note: Air ßow will reduce qja and is highly recommended.
GRAYCHIP,INC.
- 18 -
FEBRUARY 18, 1998
This document contains information which may be changed at any time without notice