NTE NTE1849

NTE1849
Integrated Circuit
Frequency Synthesizer for TV Tuning Systems
Description:
The NTE1849 is a CMOS frequency synthesizer for TV tuning systems consisting of a 13–bit programmable divider, 12–bit divider and phase comparator circuits.
Absolute Maximum Ratings: (VSS = 0V, TA = +25°C unless otherwise specified)
Supply Voltage, VDD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 to +9V
Input Voltage, VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 to VDD +0.3V
Output Voltage, VO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 to VDD +0.3V
Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –20° to +70°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55° to +100°C
Operating Conditions: (VSS = 0V, TA = 0° to +70°C unless otherwise specified)
Parameter
Supply Voltage
Symbol
Test Conditions
VDD
Min
Typ
Max
Unit
6.5
7.0
7.5
V
Electrical Characteristics: (VDD = 7V, VSS = 0V, TA = 0° to +70°C unless otherwise specified)
Parameter
Symbol
Supply Current
IDD
Total Power Dissipation
Ptot
Test Conditions
TA = +25
+25°C,
C, VDD = 7V,
without load
Min
Typ
Max
Unit
–
–
15
mA
–
–
105
mW
Input Terminal (LFI)
Maximum Input Signal Frequency
Input Voltage Swing
Input Current
fi(max)
Input Sine Wave,
15.6
–
–
MHz
Vi
Free Running LFI
0.7
–
–
Vp–p
VI = VSS to VDD
–50
–
+50
µA
II(1)
Input Terminal (PI0 to PI3, LDI)
“H” Level Input Voltage
VIH
3.4
–
VDD
V
“L” Level Input Voltage
VIL
VSS
–
0.8
V
Input Current
II(2)
–10
–
+10
µA
VI = VSS to VDD
Electrical Characteristics (Cont’d): (VDD = 7V, VSS = 0V, TA = 0° to +70°C unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Output Terminal (PDO)
“H” Level Output Current
IOH(1)
VO = 5V
–0.8
–
–
mA
“L” Level Output Current
IOL(1)
VO = 2V
0.8
–
–
mA
Output Leakage Current
ILeak
VO = 1/2 VDD
–0.03
–
+0.03
µA
6.0
–
–
V
–
–
0.4
V
OutputTerminal (TMO)
“H” Level Output Voltage
VOH(1)
IOH = –0.05mA
“L” Level Output Voltage
VOL(1)
IOL = 0.1mA
“H” Level Output Voltage
VOH(2)
IOH = –0.4mA
6.0
–
–
V
“L” Level Output Voltage
VOL(2)
IOL = 0.16mA
–
–
0.4
V
–
3.58
–
MHz
Output Terminal (CKO)
Oscillator Terminal (QI, QO)
Oscillation Frequency
fOSC
Capacitance
Input Capacitance
CI
VI = 2V
–
5
–
pF
Output Capacitance
CO
VO = 2V
–
7
–
pF
Pin Connection Diagram
16
VDD
1
16 VSS
QI 2
15 LFI
QO 3
14 PI3
CKO 4
13 PI2
LDI 5
12 PI1
TMO 6
11 PI0
N.C. 7
10 SCO
PDO 8
9 RCO
9
.260 (6.6) Max
1
8
.300
(7.62)
.785 (19.9)
Max
.200 (5.08)
Max
.245
(6.22)
Min
.100 (2.54)
.700 (17.7)