UPC8158K-E1(2001) Просмотр технического описания (PDF) - NEC => Renesas Technology
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UPC8158K-E1 Datasheet PDF : 5 Pages
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PIN EXPLANATIONS (CONT.)
UPC8158K
PIN
SYMBOL
SUPPLY
PIN
FUNCTION AND APPLICATION
NO.
VOLTAGE (V) VOLTAGE (V)
Ground pin for modulator, up-converter
12
GND
0
and AGC circuits. This pin should be
–
grounded with minimum inductance.
Form the ground pattern as widely as
possible to minimize ground impedance.
EQUIVALENT CIRCUIT
13
LO2in
–
1.8
Local signal input for modulator. This pin
must be coupled with DC cut capacitor
33 pF and should be terminated with
13
14
51 Ω resistor.
14
LO2inb
–
15
N.C.
–
16
GND
0
17
VPS/VAGC
VPS/VAGC
18
N.C.
–
19
GND
0
20
Vcc
2.7 to 4.0
21
GND
0
22
N.C.
–
23
RFOUT
–
Bypass pin of up-converter's local signal
1.8
input. This pin should be decoupled with
33 pF capacitor.
–
This pin is not connected to internal
circuit. This pin should be opened or
grounded.
Ground pin for modulator, up-converter
–
and AGC circuits. This pin should be
grounded with minimum inductance.
–
Power save control pin for modulator,
upconverter and AGC circuits. This pin
also assigned as gain control pin
forAGC circuits. Operation status with
applied voltages are as follows.
VPS/VAGC (V)
STATE
17
0 to 0.4
OFF (Sleep Mode)
1 to 2.5
On (AGC Mode)
–
These pins is not connected to internal
circuit. These pins should be opened or
grounded.
Ground pin for modulator, up-converter
–
and AGC circuits. This pin should be
grounded with minimum inductance.
–
Supply Voltage pin for modulator, up-
converter and AGC circuits.
–
Ground pin for RF output buffer. This pin
should be grounded with minimum
inductance.
–
This pin is not connected to internal
circuit. This pin should be opened or
grounded.
1.75
RF output pin. This pin is emitter
follower which is low impedance output
port. This pin can be easily matched to
50 Ω impedance using external coupling
and decoupling capacitors.
REG
AGC Cont
External
23
24
N.C.
–
25
Vcc
2.7 to 4.0
These pins are not connected to internal
–
circuit. These pins should be opened or
grounded.
–
Supply Voltage pin for RF output buffer.
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