NEC UPC2746T, UPC2745TB-E3, UPC2745TB, UPC2745T-E3, UPC2745T Datasheet
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DATA SHEET
BIPOLAR ANALOG INTEGRATED CIRCUITS
mPC2745TB, mPC2746TB
3 V, SUPER MINIMOLD SILICON MMIC
WIDEBAND AMPLIFIER FOR MOBILE COMMUNICATIONS
DESCRIPTION
The mPC2745TB and mPC2746TB are silicon monolithic integrated circuits designed as buffer amplifier for mobile communications. These ICs are packaged in super minimold package which is smaller than conventional minimold.
The mPC2745TB and mPC2746TB have each compatible pin connections and performance to mPC2745T/ mPC2746T of conventional minimold version. So, in the case of reducing your system size, mPC2745TB/mPC2746TB are suitable to replace from mPC2745T/mPC2746T.
These ICs are manufactured using NEC’s 20 GHz fT NESATäIII silicon bipolar process. This process uses silicon nitride passivation film and gold electrodes. These materials can protect chip surface from external pollution and prevent corrosion/migration. Thus, these IC have excellent performance, uniformity and reliability.
FEATURES
• High-density surface mounting :
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Supply voltage |
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Wideband response |
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High isolation |
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6 pin super minimold package Recommended VCC = 2.7 to 3.3 V Circuit operation VCC = 1.8 to 3.3 V fu = 2.7 GHzTYP. @mPC2745TB
fu = 1.5 GHzTYP. @mPC2746TB
ISL = 38 dBTYP. @mPC2745TB
ISL = 45 dBTYP. @mPC2746TB
APPLICATION
•1.5 GHz to 2.5 GHz communication system (PHS, wireless LAN; etc.): mPC2745TB
• 800 MHz to 900 MHz cellular telephone (CT2, GSM, etc.) |
: mPC2746TB |
ORDERING INFORMATION
PART NUMBER |
PACKAGE |
MARKING |
mPC2745TB-E3 |
6 pin super |
C1Q |
mPC2746TB-E3 |
minimold |
C1R |
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SUPPLYING FORM |
fU |
Embossed tape 8 mm wide. |
2.7 GHzTYP. |
1, 2, 3 pins face to perforation side of the tape. Qty 3 kp/reel. |
1.5 GHzTYP. |
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Remarks To order evaluation samples, please contact your local NEC sales office.
(Part number: mPC2745TB, mPC2746TB)
Caution: Electro-static sensitive devices
Document No. P11511EJ2V0DS00 (2nd edition) |
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Date Published April 1997 N |
© |
1996 |
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mPC2745TB, mPC2746TB
PIN CONNECTIONS
(Top View)
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C1Q |
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3 |
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2 |
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Marking is an example of
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(Bottom View) |
Pin NO. |
Pin name |
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1 |
INPUT |
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4 |
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4 |
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3 |
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2 |
GND |
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5 |
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5 |
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2 |
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3 |
GND |
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4 |
OUTPUT |
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6 |
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6 |
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1 |
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5 |
GND |
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μ PC2745TB |
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6 |
VCC |
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PRODUCT LINE-UP OF |
PC2745, |
PC2746 (TA = +25 °C, VCC = 3.0 V, ZL = Zs = 50 W) |
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PART NO. |
fu (GHz) |
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PO(sat) (dBm) |
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GP (dB) |
NF (dB) |
ICC (mA) |
PACKAGE |
MARKING |
mPC2745T |
2.7 |
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-1 |
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12 |
6.0 |
7.5 |
6 pin minimold |
C1Q |
mPC2745TB |
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6 pin super minimold |
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mPC2746T |
1.5 |
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0 |
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19 |
4.0 |
7.5 |
6 pin minimold |
C1R |
mPC2746TB |
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6 pin super minimold |
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Remarks Typical performance. Please refer to ELECTRICAL CHARACTERISTICS in detail.
Notice The package size distinguish between minimold and super minimold.
SYSTEM APPLICATION EXAMPLE
Digital Cellular System Block Diagram
Digital Cellular System Block Diagram
RX |
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DEMO |
I |
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SW |
PLL |
PLL |
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I |
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0˚ |
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TX |
PA |
φ |
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90˚ |
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Q |
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: μPC2745TB, μPC2746TB applicable |
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To know the associated products, please refer to each latest data sheet.
2
mPC2745TB, mPC2746TB
PIN EXPLANATION
Pin |
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Applied |
Pin |
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Pin Name |
voltage |
voltage |
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NO. |
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V |
VNote |
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1 |
INPUT |
¾ |
0.87 |
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0.82 |
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4 |
OUTPUT |
¾ |
1.95 |
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2.54 |
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6 |
VCC |
2.7 to 3.3 |
¾ |
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2 |
GND |
0 |
¾ |
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3 |
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5 |
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Function and applications |
Internal equivalent circuit |
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Signal input pin. A internal matching circuit, configured with resistors, enables 50 W connection over a wide band. this pin must be
coupled to signal source with capacitor for DC 
6 cut.
Signal output pin. A internal matching circuit, |
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4 |
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configured with resistors, enables 50 W |
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connection over a wide band. This pin must |
1 |
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be coupled to next stage with capacitor for DC |
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cut. |
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Power supply pin. This pin should be externally equipped with bypass capacity to minimize ground impedance.
Ground pin. This pin should be connected to
2
system ground with minimum inductance.
3
Ground pattern on the board should be formed
5
as wide as possible. All the ground pins must be connected together with wide ground pattern to decrease impedance difference.
Note Pin voltage is measured at VCC = 3.0 V. Above: mPC2745TB, Below: mPC2746TB
3
mPC2745TB, mPC2746TB
ABSOLUTE MAXIMUM RATINGS
PARAMETER |
SYMBOL |
CONDITION |
RATINGS |
UNIT |
Supply voltage |
VCC |
TA = +25 °C |
4.0 |
V |
Circuit current |
ICC |
TA = +25 °C |
16 |
mA |
Input power level |
Pin |
TA = +25 °C |
0 |
dBm |
Total power dissipation |
PD |
Mounted on double sided copper clad |
200 |
mW |
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50 ´ 50 ´ 1.6 mm epoxy glass PWB |
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(TA = +85 °C) |
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Operating ambient temperature |
TA |
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-40 to +85 |
°C |
Storage temperature |
TSTG |
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-55 to +150 |
°C |
RECOMMENDED OPERATING CONDITIONS
PARAMETER |
SYMBOL |
MIN. |
TYP. |
MAX. |
UNIT |
NOTICE |
Supply voltage |
VCC |
2.7 |
3.0 |
3.3 |
V |
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Operating ambient temperature |
TA |
-40 |
+25 |
+85 |
°C |
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ELECTRICAL CHARACTERISTICS (TA = + 25 °C, VCC = 3.0 V, ZL = ZS = 50 W)
PARAMETER |
SYMBOL |
TEST CONDITION |
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mPC2745TB |
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mPC2746TB |
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UNIT |
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MIN. |
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TYP. |
MAX. |
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MIN. TYP. |
MAX. |
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Circuit current |
ICC |
No signals |
5.0 |
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7.5 |
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10.0 |
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5.0 |
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7.5 |
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10.0 |
mA |
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Power Gain |
GP |
f = 0.5 GHz |
9.0 |
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12 |
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14 |
16 |
19 |
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21 |
dB |
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Noise figure |
NF |
f = 0.5 GHz |
¾ |
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6 |
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7.5 |
¾ |
4.0 |
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5.5 |
dB |
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Upper limit operating |
fu |
3 dB down below |
2.3 |
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2.7 |
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¾ |
1.1 |
1.5 |
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¾ |
GHz |
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frequency |
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from gain at f = 100 |
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MHz |
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Isolation |
ISL |
f = 0.5 GHz |
33 |
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38 |
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¾ |
40 |
45 |
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¾ |
dB |
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Input return loss |
RLin |
f = 0.5 |
GHz |
8 |
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11 |
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¾ |
10 |
13 |
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¾ |
dB |
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Output return loss |
RLout |
f = 0.5 |
GHz |
2.5 |
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5.5 |
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¾ |
5.5 |
8.5 |
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¾ |
dB |
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Maximum output level |
PO(sat) |
f = 0.5 |
GHz, |
-4 |
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-1 |
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¾ |
-3 |
0 |
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¾ |
dBm |
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Pin = -6 dBm |
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4
mPC2745TB, mPC2746TB
STANDARD CHARACTERISTICS FOR REFERENCE (TA = +25 °C, VCC = 3.0 V, ZL = ZS = 50 W)
PARAMETER |
SYMBOL |
TEST CONDITION |
mPC2745TB |
mPC2745B |
UNIT |
Circuit current |
ICC |
VCC = 1.8 V, No signals |
4.5 |
4.5 |
mA |
Power Gain |
GP |
VCC = 3.0 V, f = 1 GHz |
12 |
18.5 |
dB |
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VCC = 3.0 V, f = 2 GHz |
11 |
¾ |
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VCC = 1.8 V, f = 500 MHz |
7 |
14 |
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Noise figure |
NF |
VCC = 3.0 V, f = 1 GHz |
5.5 |
4.2 |
dB |
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VCC = 3.0 V, f = 2 GHz |
5.7 |
¾ |
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VCC = 1.8 V, f = 500 MHz |
8.0 |
5.0 |
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Upper limit |
fu |
VCC = 1.8 V, 3 dB down below from gain at f = 100 MHz |
1.8 |
1.1 |
GHz |
operating |
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frequency |
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Isolation |
ISL |
VCC = 3.0 V, f = 1 GHz |
33 |
38 |
dB |
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VCC = 3.0 V, f = 2 GHz |
30 |
¾ |
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VCC = 1.8 V, f = 500 MHz |
35 |
37 |
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Input return loss |
RLin |
VCC = 3.0 V, f = 1 GHz |
13 |
10 |
dB |
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VCC = 3.0 V, f = 2 GHz |
14 |
¾ |
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VCC = 1.8 V, f = 500 MHz |
6.5 |
10 |
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Output return |
RLout |
VCC = 3.0 V, f = 1 GHz |
6.5 |
8.5 |
dB |
loss |
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VCC = 3.0 V, f = 2 GHz |
8.5 |
¾ |
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VCC = 1.8 V, f = 500 MHz |
6.0 |
9.5 |
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Maximum output |
PO(sat) |
VCC = 3.0 V, f = 1 GHz, Pin = -6 dBm |
-2.5 |
-1 |
dBm |
level |
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VCC = 3.0 V, f = 2 GHz, Pin = -6 dBm |
-3.5 |
¾ |
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VCC = 1.8 V, f = 500 MHz, Pin = -10 dBm |
-11 |
-8 |
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3rd order |
IM3 |
VCC = 3.0 V, Pout = -20 dBm, f1 = 500 MHz, f2 = 502 MHz |
-54 |
-51 |
dBc |
intermodulation |
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VCC = 3.0 V, Pout = -20 dBm, f1 = 1 000 MHz, f2 = 1 002 MHz |
-50 |
¾ |
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distortion |
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VCC = 1.8 V, Pout = -20 dBm, f1 = 500 MHz, f2 = 502 MHz |
-31 |
-37 |
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5
mPC2745TB, mPC2746TB
TEST CIRCUIT
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VCC |
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1 000 pF |
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C3 |
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6 |
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50 Ω |
C1 |
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C2 |
50 Ω |
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IN |
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1 |
4 |
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OUT |
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1 000 pF |
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1 000 pF |
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2, 3, 5 |
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EXAMPLE OF APPLICATION CIRCUIT |
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VCC |
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1 000 pF |
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1 000 pF |
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50 Ω |
C1 |
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C5 |
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C2 |
50 Ω |
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IN |
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4 |
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1 |
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OUT |
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1 000 pF |
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1 000 pF |
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1 000 pF |
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1 000 pF |
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R1 |
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50 to 200 Ω |
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2, 3, 5 |
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2, 3, 5 |
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To stabilize operation, |
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please connect R1, C5 |
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The application circuits and their parameters are for references only and are not intended for use in actual designin's.
Capacitors for VCC, input and output pins
1 000 pF capacitors are recommendable as bypass capacitor for VCC pin and coupling capacitors for input/output pins.
Bypass capacitor for VCC pin is intended to minimize VCC pin’s ground impedance. Therefore, stable bias can be supplied against VCC fluctuation.
Coupling capacitors for input/output pins are intended to minimize RF serial impedance and cut DC.
To get flat gain from 100 MHz up, 1 000 pF capacitors are assembled on the test circuit. [Actually, 1 000 pF capacitors give flat gain at least 10 MHz. In the case of under 10 MHz operation, increase the value of coupling capacitor such as 2 200 pF. Because the coupling capacitors are determined by the equation of C = 1/(2 p fZs).]
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