74HC7046AD,112 NXP Semiconductors, 74HC7046AD,112 Datasheet - Page 37

• Manufacturer Part Number: 74HC7046AD,112
• Description: IC PLL W/LOCK DETECTOR 16SOIC
• Manufacturer: NXP Semiconductors
• Type: Phase Lock Loop (PLL)r
• Series: 74HCr

Specifications of 74HC7046AD,112

• Number Of Circuits: 1
• Package / Case: 16-SOIC (3.9mm Width)
• Pll: Yes
• Input: Clock
• Output: Clock
• Ratio - Input:output: 2:3
• Differential - Input:output: No/No
• Frequency - Max: 19MHz
• Divider/multiplier: No/No
• Voltage - Supply: 3 V ~ 6 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Frequency-max: 19MHz
• Supply Voltage (max): 6 V
• Supply Voltage (min): 2 V
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Operating Supply Voltage: 5 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 74HC7046AD; 74HC7046AD; 933827470112

Philips Semiconductors
Note
For an extensive description and application example please refer to application note ordering number
9398 649 90011.
Also available a computer design program for PLL’s ordering number 9398 961 10061.
Since the output frequency is proportional to the VCO control voltage, the PLL frequency response can be observed with
an oscilloscope by monitoring pin 9 of the VCO. The average frequency response, as calculated by the Laplace method,
is found experimentally by smoothing this voltage at pin 9 with a simple RC filter, whose time constant is long compared
to the phase detector sampling rate but short compared to the PLL response time.
December 1990
Phase-locked-loop with lock detector
e
e
/
(t)
n
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
0
Fig.35 Type 1, second order frequency step response.
= 5.0
1
Fig.34 Frequency synthesizer.
2
= 2.0
3
37
4
= 0.3
0.5
0.707
1.0
5
6
7
MGA959
n t
8
0
0.2
0.4
0.6
0.8
1.0
74HC/HCT7046A
0.6
0.4
0.2
e
e
/
(t)
Product specification
n