參數(shù)資料
型號(hào)： TLC2942IDBR
廠商： TEXAS INSTRUMENTS INC
元件分類(lèi)： PLL合成/DDS/VCOs
英文描述： PHASE LOCKED LOOP, 20 MHz, PDSO38
封裝： PLASTIC, SO-38
文件頁(yè)數(shù)： 27/29頁(yè)
文件大?。?/td> 473K
代理商： TLC2942IDBR
TLC2942
HIGH-PERFORMANCE DUAL PHASE-LOCKED LOOP BUILDING BLOCK
SLAS146B – NOVEMBER 1996 – REVISED JUNE 1997
7
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage (each supply), VDD (see Note 1)
7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage range (each input), VI (see Note 1)
– 0.5 V to VDD + 0.5 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input current (each input), II
±20 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output current (each output), IO
±20 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous total power dissipation, at (or below) TA = 25°C (see Note 2)
1160 mW
. . . . . . . . . . . . . . . . . . . . . .
Operating free-air temperature range, TA
–20
°C to 75°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, Tstg
–65
°C to 150°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds
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 for extended periods may affect device reliability.
NOTES:
1. All voltage values are with respect to network GND.
2. For operation above 25
°C free-air temperature, derate linearly at the rate of 9.3 mW/°C.
recommended operating conditions
MIN
NOM
MAX
UNIT
Supply voltage VDD (each supply see Note 3)
VDD = 3 V
2.85
3
3.15
V
Supply voltage, VDD (each supply, see Note 3)
VDD = 5 V
4.75
5
5.25
V
Input voltage, VI, (all inputs except VCOIN1, VCOIN2)
0
VDD
V
Output current, IO (each output)
0
±2
mA
VCO control voltage at each VCOIN1, VCOIN2
0.9
VDD
V
Lock frequency (each VCO) (
×1 output)
VDD = 3 V
14
21
MHz
Lock frequency, (each VCO) (
×1 output)
VDD = 5 V
22
50
MHz
Lock frequency (each VCO) (
×1/2 output)
VDD = 3 V
7
10.5
MHz
Lock frequency, (each VCO) (
×1/2 output)
VDD = 5 V
11
25
MHz
Bias resistor (each BIAS) RBIAS1 RBIAS2
VDD = 3 V
2.2
3.3
4.3
k
Bias resistor, (each BIAS), RBIAS1, RBIAS2
VDD = 5 V
1.5
2.2
3.3
k
Operating temperature, TA
–20
75
°C
NOTE 3: It is recommended that LOGIC VDD1 and VCO VDD1 or LOGIC VDD2 and VCO VDD2 should be at the same voltage and separated from
each other.
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