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RF9678 PDF даташит

Спецификация RF9678 изготовлена ​​​​«RF Micro Devices» и имеет функцию, называемую «W-CDMA TRANSMIT MODULATOR AND IF AGC».

Детали детали

Номер произв RF9678
Описание W-CDMA TRANSMIT MODULATOR AND IF AGC
Производители RF Micro Devices
логотип RF Micro Devices логотип 

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RF9678 Даташит, Описание, Даташиты
Preliminary
RF9678
5 W-CDMA TRANSMIT MODULATOR AND IF AGC
Typical Applications
• W-CDMA Systems
• EDGE Systems
• CDMA Systems
• TDMA Systems
Product Description
The RF9678 is an integrated complete quadrature modu-
lator and IF AGC amplifier designed for the transmit sec-
tion of W-CDMA applications. It is designed to modulate
baseband I and Q signals, and amplify the resulting IF
signals while providing 55dB of gain control range. This
circuit is designed as part of RFMD’s single mode
W-CDMA Chipset, which also includes the RF2679
W-CDMA Receive IF AGC and Demodulator. The IC is
manufactured on an advanced Silicon Bi-CMOS process,
and is supplied in a16-pin leadless chip carrier.
Optimum Technology Matching® Applied
Si BJT
üSi Bi-CMOS
GaAs HBT
SiGe HBT
GaAs MESFET
Si CMOS
16 15 14 13
VGC 1
Gain Control
12 NC
VCC2 2
MOD+ 3
MOD- 4
5
S
Quad
/2
67
11 BG OUT
10 LO+
9 LO-
8
1.00
.80 0.85
.65
.60
.24 typ
.35
2 .23
4.00
sq.
.65
.30
4 PLCS
1.85
1.55 sq.
12°
max
.05
.01
NOTES:
.75
.50
.23
.13
.65 4 PLCS
Dimensions in mm.
1 Shaded Pin is Lead 1.
2
Dimension applies to plated terminal and is measured between 0.02 mm and
0.25 mm from terminal end.
3 Pin 1 identifier must exist on top surface of package by identification mark or
feature on the package body. Exact shape and size is optional.
4 Package Warpage: 0.05 max.
5 Die thickness allowable: 0.305 mm max.
Package Style: LCC, 16-Pin, 4x4
Features
• Digitally Controlled Power Down Modes
• 2.7V to 3.3V Operation
• Digital LO Quadrature Divider
• AGC Linearity/Current Consumption Var.
• IF AGC Amp with 55dB Gain Control
Ordering Information
RF9678
W-CDMA Transmit Modulator and IF AGC
RF9678 PCBA Fully Assembled Evaluation Board
Functional Block Diagram
RF Micro Devices, Inc.
7628 Thorndike Road
Greensboro, NC 27409, USA
Tel (336) 664 1233
Fax (336) 664 0454
http://www.rfmd.com
5
Rev A4 010622
5-91









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RF9678 Даташит, Описание, Даташиты
RF9678
Preliminary
Absolute Maximum Ratings
Parameter
Supply Voltage
Power Down Voltage (VPD)
I and Q Levels, per pin
LO1 Level, balanced
Operating Ambient Temperature
Storage Temperature
Rating
-0.5 to +5
-0.5 to VCC+ 0.7
1.2
+3
-40 to +85
-40 to +150
Unit
VDC
V
VPP
dBm
°C
°C
Caution! ESD sensitive device.
RF Micro Devices believes the furnished information is correct and accurate
at the time of this printing. However, RF Micro Devices reserves the right to
make changes to its products without notice. RF Micro Devices does not
assume responsibility for the use of the described product(s).
Parameter
Specification
Min.
Typ.
Max.
Unit
Condition
5 Overall
I/Q Input Frequency Range
I/Q Input Impedance
I/Q Input Reference Level
LO1 Frequency Range
LO1 Input Level
LO1 Input Impedance
-15
Sideband Suppression
Carrier Suppression
IF = 380 MHz
Max Output Power, W-CDMA
Mode
Min Output Power, CDMA Mode
Output Power Accuracy
Adjacent Channel Power Rejec-
tion @ 5MHz
Adjacent Channel Power Rejec-
tion @ 10MHz
Output Noise Power
Output Impedance
IF = 570 MHz
Max Output Power, W-CDMA
Mode
Adjacent Channel Power Rejec-
tion @ 5MHz
Adjacent Channel Power Rejec-
tion @ 10MHz
Power Supply
45
25
45
20
-6
-63
-3
0 to 10
20
1.3
0 to 1200
-8
200
2
50
30
50
28
-4.5
-59
-135
200
-4
T=25 °C, VCC=3.0V; ZLOAD=200;
I=Q=500mVPP, 1000mVPP Differential;
Output externally matched
MHz
Balanced
kBalanced
VDC Per Pin
MHz
-5
dBm
Specifications
Balanced (Evaluation Board Schematic)
kBalanced, IC input
dBc I/Q Amplitude adjusted to within ±20mV
dBc Unadjusted
dBc I/Q DC Offset adjusted to within ±20mV
dBc Unadjusted
I=Q=500mVPP, 1000mVPP Differential;
LO1=760MHz; Output externally matched
-3
dBm
W-CDMA ACPR=-50dBc, VGC=2.4VDC,
T=-20°C to +85°C
-56
dBm
VGC = 0.2VDC
+3 dB T=-20 to +85 °C, Ref=25 °C
-46 dBc W-CDMA Modulation, VGC =0.2VDC to
2.4 VDC
-56 dBc W-CDMA Modulation, VGC =0.2VDC to
2.4 VDC
dBm/Hz @ 20MHz offset, VGC=2.4VDC
Balanced
I=Q=700mVPP, 1400mVPP Differential;
LO1=1140MHz; Output externally matched
dBm
W-CDMA ACPR=-50dBc, VGC=2.4VDC,
T=-20°C to +85°C
-46 dBc W-CDMA Modulation, VGC =0.2VDC to
2.4 VDC
-56 dBc W-CDMA Modulation, VGC =0.2VDC to
2.4 VDC
Supply Voltage
Current Consumption
Power Down Current
VPD HIGH Voltage
VPD LOW Voltage
Gain Control Range
VGC Current
2.7
30
VCC-1.0
0.2
3.0
39
3.3 V
46 mA Over temperature
<10 µA
V
0.9 V
2.4 V
40 µA
5-92
Rev A4 010622









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RF9678 Даташит, Описание, Даташиты
Preliminary
RF9678
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Function
VGC
VCC2
MOD+
MOD-
I SIG+
I SIG-
Q SIG+
Q SIG-
LO-
LO+
BG OUT
NC
VCC1
AGC DEC
Description
Interface Schematic
Analog gain control for AGC amplifiers. Valid control voltage ranges are
from 0.2VDC to 2.4VDC. The gain range for the AGC is 55dB. These
voltages are valid ONLY for a 39ksource impedance. A DC voltage
less than or equal to the maximum allowable VCC may be applied to
this pin when no voltage is applied to the VCC pins.
DC supply. This pin should be bypassed to ground with a 10nF capaci-
tor.
Same as pin 4, except complementary output.
BIAS
VGC
See pin 4.
One half of the balanced AGC output port. The impedance of this port
is 200balanced. This pin requires an inductor to VCC to achieve full
dynamic range. In order to maximize gain, this inductor should be a
high-Q type and should be parallel resonated out with a capacitor (see
application schematic). This pin is NOT DC blocked. A blocking capaci-
tor of 2200pF is needed when this pin is connected to a DC path. An
appropriate matching network may be needed if an IF filter is used.
BIAS
One half of the balanced baseband input to the I mixer. This pin is DC-
coupled and must be supplied with 1.3VDC to bias the input transistor.
Input impedance of this pin is 10kminimum. For maximum carrier
suppression, DC voltage on this pin relative to ISIG- DC voltage may be
adjusted. (In case a balun is needed, a seperate balun board (RD0102
PCBA) could be ordered as an accessory.)
See pin 8.
One half of the balanced baseband input to the I mixer. This pin is DC-
coupled and must be supplied with 1.3VDC to bias the input transistor.
Input impedance of this pin is 10kminimum. For maximum carrier
suppression, DC voltage on this pin relative to ISIG+ DC voltage may
be adjusted.
I SIG+
BIAS
MOD OUT-
MOD OUT+
I SIG-
One half of the balanced baseband input to the Q mixer. This pin is DC-
coupled and must be supplied with 1.3VDC to bias the input transistor.
Input impedance of this pin is 10kminimum. For maximum carrier
suppression, DC voltage on this pin relative to QSIG- DC voltage may
be adjusted.
One half of the balanced baseband input to the Q mixer. This pin is DC-
coupled and must be supplied with 1.3VDC to bias the input transistor.
Input impedance of this pin is 10kminimum. For maximum carrier
suppression, DC voltage on this pin relative to QSIG+ DC voltage may
be adjusted.
See pin 10.
Q SIG+
Q SIG-
One half of the balanced modulator LO1 input. In single-ended applica- See pin 10.
tions (100input impedance), this pin is AC grounded with a 1nF
capacitor.
One half of the balanced modulator LO1 input. The other half of the
input, LO1-, is AC grounded for single-ended input applications. The
frequency on these pins is divided by a factor of 2, hence the carrier
frequency for the modulator becomes one half of the applied frequency.
The single-ended input impedance is 1k(balanced is 2k). This pin
is NOT internally DC blocked. An external blocking capacitor (1nF rec-
ommended) must be provided if the pin is connected to a device with
DC present.
BIAS
LO1+,
FM+
Bandgap voltage reference. This voltage, constant over temperature
and supply variation, is used to bias internal circuits. A 10nF external
bypass capacitor is required.
No connection.
DC supply. This pin should be bypassed to ground with a 10nF capaci-
tor.
AGC decoupling pin. An external bypass capacitor of 10nF capacitor is
required. The trace length between the pin and the bypass capacitors
should be minimized. The ground side of the bypass capacitors should
connect immediately to ground plane.
BIAS
LO1-,
FM-
5
Rev A4 010622
5-93










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