DATA SHEET
BIPOLAR ANALOG INTEGRATED CIRCUIT
µ
PC3207GR
FREQUENCY DOWN CONVERTER FOR
VHF TO UHF BAND RECEIVER
DESCRIPTION
The
µ
PC3207GR is a Silicon monolithic IC designed for receiver applications. This IC consists of a double balanced
mixer (DBM), local oscillator, preamplifier for precscaler operation, IF amplifier, regulator, UHF/VHF switching circuit,
and so on. This one-chip IC covers a wide frequency band from VHF to UHF bands. This IC is packaged in 20-pin
SSOP (Shrink Small Outline Package) suitable for surface mounting.
FEATURES
• VHF to UHF bands operation.
• Low distortion
• Supply voltage
CM: VHF (@f
RF
= 470 MHz) 96 dB
µ
UHF (@f
RF
= 890 MHz) 92 dB
µ
: 9V
• Packaged in 20-pin SSOP suitable for surface mounting
APPLICATIONS
• Tuners for TV and VCR
• Receivers for VHF to UHF bands
ORDERING INFORMATION
Part Number
Package
20-pin plastic SSOP (225 mil)
Supplying Form
Embossed tape 12 mm wide.
Pin 1 indicates pull-out direction of tape.
Qty 2.5 kp/reel.
µ
PC3207GR-E1
To order evaluation samples, please contact your local NEC office. (Part number for sample order:
µ
PC3207GR)
Caution electro-static sensitive device
The information in this document is subject to change without notice. Before using this document, please
confirm that this is the latest version.
Not all devices/types available in every country. Please check with local NEC representative for availability
and additional information.
Document No. P13717EJ3V0DS00 (3rd edition)
Date Published October 1999 N CP(K)
Printed in Japan
The mark
shows major revised points.
©
1998,1999
µ
PC3207GR
INTERNAL BLOCK DIAGRAM AND PIN CONFIGURATION (TOP VIEW)
U OSC C1
U OSC B2
U OSC B1
U OSC C2
UB
OSC OUT
GND
V OSC B1
V OSC B2
1
2
3
4
5
6
7
8
9
20
19
18
17
16
15
14
13
12
URF IN
URF IN
GND
VRF IN
VRF IN
MIX OUT
MIX OUT
V
CC
IF OUT
REG
V OSC C1 10
REG
11
2
Data Sheet P13717EJ3V0DS00
µ
PC3207GR
PIN EXPLANATION
Pin No.
1
Symbol
UOSC collector
(Tr. 1)
Function and Explanation
Collector pin of UHF oscillator with balance
amplifier. Assemble LC resonator with 2
pin through capacitor ~ 1 pF to oscillate
with active feedback loop.
Base pin of UHF oscillator with balance
amplifier. Connected to LC resonator
through feedback capacitor ~ 360 pF.
Equivalent Circuit
3
1
4
2
2
UOSC base
(Tr.2)
UOSC base
(Tr. 1)
UOSC collector
(Tr. 2)
3
4
Collector pin of UHF oscillator with balance
amplifier. Assemble LC resonator with 2
pin through capacitor ~ 1 pF to oscillate
with active feedback loop.
Double balanced oscillator with transistor 1
and transistor 2.
Switching pin for VHF or UHF operation.
VHF operation = open
UHF operation = 9.0 V
UHF and VHF oscillator output pin. In case
of F/S tuner application, connected PLL
symthesizer IC’s input pin.
Grounded through 1.5 kΩ resistor.
5
UB
6
OSC output
6
1.5 k
* External element
7
8
GND
VOSC base
(Tr. 1)
GND pin of VHF and UHF oscillator.
Base pin of VHF oscillator.
Grounded through capacitor ~ 10 pF.
8
10
9
9
VOSC base
(Tr. 2)
Base pin of VHF oscillator.
Assemble LC resonator with 10 pin to
oscillate with active feedback loop.
10
VOSC collector
(Tr. 1)
Collector pin of VHF oscillator.
Connected to LC resonator through
feedback capacitor ~ 3 pF.
Data Sheet P13717EJ3V0DS00
3
µ
PC3207GR
Pin No.
11
12
Symbol
REG
IF output
Function and Explanation
Monitor pin of regulator output voltage.
IF signal output pin of VHF-UHF band
functions.
Equivalent Circuit
12
13
V
CC
Power supply pin for VHF-UHF band
functions.
VHF and UHF MIX output pins.
These pins should be equipped with tank
circuit to adjust intermediate frequency.
14
15
14
MIX
output1
15
MIX
output2
VRF input
(bypass)
16
Bypass pin for VHF MIX input.
Grounded through capacitor.
17
16
17
VRF input
VRF signal input pin.
18
GND
GND pin of MIX, IF amplifier and
regulator.
Bypass pin for UHF Mü\œinput.
Grounded through capacitor.
14
15
19
URF input
(bypass)
20
URF input
URF signal input pin.
19
20
4
Data Sheet P13717EJ3V0DS00
µ
PC3207GR
ABSOLUTE MAXIMUM RATINGS (T
A
= +25
°
C UNLESS OTHERWISE SPECIFIED)
Parameter
Supply Voltage 1
Supply Voltage 2
Power Dissipation
Operating Ambient Temperature
Storage Temperature
Symbol
V
CC
UB
P
D
T
A
T
stg
T
A
= 75
°C
Note
Condition
Rating
11.0
11.0
500
–40 to +75
–60 to +150
Unit
V
V
mW
°C
°C
Note
Mounted on 50
×
50
×
1.6 mm double epoxy glass board.
RECOMMENDED OPERATING RANGE
Parameter
Supply Voltage 1
Supply Voltage 2
Operating Ambient Temperature
Symbol
V
CC
UB
T
A
MIN.
8.0
8.0
–20
TYP.
9.0
9.0
+25
MAX.
10.0
10.0
+75
Unit
V
V
°C
Data Sheet P13717EJ3V0DS00
5
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