BGX7100HN/1,115 NXP Semiconductors, BGX7100HN/1,115 Datasheet - Page 11

• Manufacturer Part Number: BGX7100HN/1,115
• Description: Modulator / Demodulator IQ MOD 5V 184mA
• Manufacturer: NXP Semiconductors

Specifications of BGX7100HN/1,115

• Rohs: yes
• Package / Case: HVQFN-24
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Modulation Type: Quadrature
• Operating Supply Voltage: 4.75 V to 5.25 V
• Factory Pack Quantity: 1500
• Supply Current: 184 mA

NXP Semiconductors
12. Application information
BGX7100
Product data sheet
Fig 4.
LO input
Typical wideband application diagram
O
TC1-1-43A+
1
3
PRIMARY
12.1 External DAC interfacing
5
O
4
Figure 4
the application note for narrowband optimum component values.
Nominal DAC single-ended output currents are between 0 mA and 20 mA.
If the DAC outputs are only designed for 1 V peak-to-peak differential (250 mV
peak-single) then the single-ended impedance at the DAC needs to be limited to 25 .
This can be split as 50  load resistors at the DAC outputs and a 225  differential
resistor in parallel to the modulator inputs (see
can be properly terminated by 100  at both ends.
If the DAC outputs can withstand a higher swing without performance degradation, then
90  load resistors can be placed at the DAC outputs. No external resistors are needed in
this case, only the differential filter needs to be designed to have 180  at both ends (see
Figure
0.3 pF
6).
18 pF
18 pF
shows a typical wideband (from 0.4 GHz to 4 GHz) application circuit. Refer to
POFF_P
LOGND
LOGND
LOGND
100 nF
22 pF
LO_N
LO_P
All information provided in this document is subject to legal disclaimers.
1
2
3
4
5
6
V
24
CC
7
Rev. 5 — 3 September 2012
modulator quadrature
negative input
23
8
modulator in-phase
negative input
22
9
0°
modulator quadrature
positive input
90°
modulator in-phase
positive input
21
10
BGX7100
Figure
11
20
5). In this way, the differential filter
12
19
18
17
16
15
14
13
V
RFGND
RFOUT
i.c.
RFGND
i.c.
CC_RF(5V0)
Transmitter IQ modulator
0.4 pF
BGX7100
22 pF
© NXP B.V. 2012. All rights reserved.
39 pF
V
RFOUTPUT
CC
aaa-002965
100 nF
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