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Número de pieza | UPC8001GR-E2 | |
Descripción | IF AMPLIFIER IC WITH ON-CHIP MIXER FOR DIGITAL CELLULAR PHONES | |
Fabricantes | NEC | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de UPC8001GR-E2 (archivo pdf) en la parte inferior de esta página. Total 22 Páginas | ||
No Preview Available ! DATA SHEET
BIPOLAR ANALOG INTEGRATED CIRCUIT
µPC8001
IF AMPLIFIER IC
WITH ON-CHIP MIXER FOR DIGITAL CELLULAR PHONES
The µPC8001 is a 3-volt IF amplifier IC with an on-chip mixer developed for digital cellular phones.
The µPC8001 consists of a high-sensitivity limiter amplifier with an input frequency of 455 kHz, a high-speed
and high-precision linear RSSI (received signal strength indicator ), and a second mixer with an input frequency
of 80 to 150 MHz.
The µPC8001 features a low 3 mA (TYP.) and 2.2 µA (TYP.) current consumption at normal operation and
power-OFF, respectively. Its high-speed charge/discharge circuit enables fast power-ON/OFF switching.
The µPC8001 boasts an extremely small size packaged in a 14-pin plastic shrink SOP, and low external
capacitances of less than 0.01 µF, in addition to an on-chip RSSI output resistor, and is most suitable for
high-density mounting.
FEATURES
• Low-voltage operation…3 V ±10%
• Low power consumption…(VCC = 3 V)
During operation
At power-OFF
Mixer
2.1 mA (TYP.)
0 µA (TYP.)
IF amp. + RSSI
0.95 mA (TYP.)
2.2 µA (TYP.)
• High limiting sensitivity…–91 dBm (TYP.)
• High-precision RSSI linearity…±0.5 dB (TYP.) (VIF IN = –86 to –6 dBm)
• High-speed RSSI response time
RSSI output rise time
RSSI output fall time
77µs (TYP.)
113 µs (TYP.)
• High-speed power-ON/OFF switching time
Rise time at power-ON
Fall time at power-OFF
174 µs (TYP.)
3 µs (TYP.)
• External capacitors of less than 0.01 µF
• On-chip RSSI output resistor (34 kΩ)
• Ultra-compact package…14-pin plastic shrink SOP
Document No. IC-3426
(O.D.No. IC-8949)
Date Published February 1995 P
Printed in Japan
The information in this document is subject to change without notice.
The mark 5 shows revised points.
©©
1994, 19952
1 page 1. PIN CONFIGURATION AND PIN FUNCTIONS
(1) PIN CONFIGURATION (Top View)
• 14-pin plastic shrink SOP (225 mil)
IF OUT
PD
RSSI OUT
FIL3
VCC2
IF IN
FIL1
1
2
3
4
5
6
7
14 MIX IN1
13 MIX IN2
12 VCC1
11 OSC IN
10 GND
9 MIX OUT
8 FIL2
FIL1-FIL3
: Filter
GND
: Ground
IF IN
: Intermediate Frequency Input
IF OUT
: Intermediate Frequency Output
MIX IN1, MIX IN2 : Mixer Input
MIX OUT
: Mixer Output
OSC IN
: Oscillator Input
PD : Power Down
RSSI OUT
: Received Signal Strength Indicator Output
VCC1, VCC2
: Power Supply
µPC8001
5
5 Page µPC8001
Figure 3-1. Mixer Input
(a) 50Ω Termination
(b) LC Matching
VMIX IN
0.01µ F
50Ω
14 MIX IN1
VMIX IN
Note
5 pF
0.01µ F
14 MIX IN1
Note
107 nH
Note The values L and C are affected by the parasitic capacitance and inductance of the board. Therefore,
adjust L and C so that the impedance at the MIX IN pin from the signal source equals 50Ω.
Remark The signal source impedance is 50Ω.
MIX IN1
14
0.01µ F
16.7 Ω
50 Ω
Figure 3-2. Third Order Intercept
MIX OUT
9
0.01µ F
1.5 kΩ
OSC IN
11
VOSC IN = –15 dBm
0.01µ F
50 Ω
Measure 455 kHz component
level with spectrum analyzer
fOSC IN = 129.545 MHz
16.7 Ω
16.7 Ω
f1 f2
f1 = 130.1 MHz, f2 = 130.2 MHz
6 dB/OCT
18 dB/OCT
f = 130 MHz
f1 = 130.1 MHz
f2 = 130.2 MHz
Remark Signal source impedance is 50Ω.
VMIX IN [dBm]
Third order intercept
11
11 Page |
Páginas | Total 22 Páginas | |
PDF Descargar | [ Datasheet UPC8001GR-E2.PDF ] |
Número de pieza | Descripción | Fabricantes |
UPC8001GR-E1 | IF AMPLIFIER IC WITH ON-CHIP MIXER FOR DIGITAL CELLULAR PHONES | NEC |
UPC8001GR-E2 | IF AMPLIFIER IC WITH ON-CHIP MIXER FOR DIGITAL CELLULAR PHONES | NEC |
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