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PDF MB54608B Data sheet ( Hoja de datos )
| Número de pieza | MB54608B | |
| Descripción | 1.0 GHz band Low Power I/Q Modulator For Direct Conversion | |
| Fabricantes | Fujitsu Media Devices | |
| Logotipo |  |
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FUJITSU SEMICONDUCTOR
DATA SHEET
DS04-23510-2E
ASSP
1.0 GHz band Low Power I/Q Modulator
For Direct Conversion
MB54608L/MB54608B
s DESCRIPTION
The MB54608L/B is an I/Q Modulator for direct conversion method, and is used for up to 1.0 GHz band digital
cellular phones such as GSM, PDC and so on.
MB54608L consists of a frequency doubler, a Flip-flop type quadrature phase shifter, I/Q modulator and a mixer
for frequency offset with a separate power supply.
Fujitsu’s advanced Bipolar process has realized very low current operation(ICC = 16.5 mA @3 V).
SSOP-20 and BCC-16 package are available.(MB54608L: SSOP-20, MB54608B: BCC-16)
s FEATURES
• Supporting GSM frequency band
Output frequency: 1.0 GHz (max.) Output power: –4 dBm(Typical, VBB = 1.0 Vp-p input)
• Low voltage operation: VCC = 2.6 V to 3.8 V
(Continued)
s PACKAGES
20-pin plastic SSOP
16-pad plastic BCC
(FPT-20P-M03)
(LCC-16P-M04)
1 page  
MB54608L/MB54608B
• MB54608B (BCC-16)
Pin no.
Pin nane I/O
1 XQ I
2 XI I
3 II
4
Mode
—
5 Vcc —
6 Out O
7
PSQ
I
8
N.C.
—
9
GND
—
10
N.C.
—
11 Lo I/O
12 Lox I/O
13 Vcc —
14
GND
—
15
GND
—
16 Q I
Descriptions
Q signal complementary input for the I/Q modulator.
I signal complementary input for the I/Q modulator.
I signal input for the I/Q modulator.
Output mode switch. Mode=Open: Low power mode.
Mode=GND: High power mode.
This pin should be connected to ground or left open.
Power supply for the I/Q modulator.
Output for the I/Q modulator. (Open collector)
Open is prohibited when power is supplied to Vcc pin.
Power saving control for the I/Q modulator. When PSQ = L(GND), power
down mode is selected.
No connection.
Ground.
No connection.
Lo input for the I/Q modulator (Output for the offset mixer.)
Lo complementary input for the I/Q modulator (Complementary output for
the offset mixer.)
Power supply for the I/Q modulator.
Ground.
Ground.
Q signal input for the I/Q modulator.
5
5 Page 
MB54608L/MB54608B
s APPLICATION EXAMPLE (MB54608L)
1) A case of the offset mixer is used.
Output
15 nH
18 nH
10 pF
0.1 µF
Vbi I Vbix
Open 100 µF
100 µF
Pcnt
VCC
PSQ
Out
VCC
PSM VCC
1 kΩ 1 kΩ
Mode I
XI
20 19 18 17 16 15
14 13
Vbqx Q Vbq
100 µF
100 µF
1 kΩ 1 kΩ
XQ Q
12 11
MB54608L
fRF = 1078.5 MHz
1 23
RFin GND IFin
S.G. 1000 pF
45 6
VCCM LO
LOX
3.9 nH
7 8 9 10
VCC GND GND GND
fRF = 130.5 MHz
S.G.100 pF
1.5-5 pF
0.1 µF
0.1 µF
3.0 V
2) A case of the offset mixer is not used.
Output
15 nH10 pF 18 nH
0.1 µF
Vbi I Vbix
Open 100 µF
100 µF
Pcnt
VCC
PSQ
VCC
Out PSM VCC
1 kΩ 1 kΩ
Mode I
XI
20 19 18 17 16 15
14 13
Vbqx Q Vbq
100 µF
100 µF
1 kΩ 1 kΩ
XQ Q
12 11
MB54608L
1 23
RFin GND IFin
4 5 6 7 8 9 10
VCCM LO LOX VCC GND GND GND
100 pF
100 pF
LDB25C201A0950
fLO = 948 MHz
S.G.
0.1 µF
Note: LDB25C201A0950: Murata Mfg. Co., Ltd.
3.0 V
(Continued)
11
11 Page | ||
| Páginas | Total 15 Páginas | |
| PDF Descargar | [ Datasheet MB54608B.PDF ] | |
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