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参数资料
| 型号： | HFA3726 |
| 厂商： | HARRIS SEMICONDUCTOR |
| 元件分类： | 通信及网络 |
| 英文描述： | 288 MACROCELL 3.3 VOLT ISP CPLD |
| 中文描述： | SPECIALTY TELECOM CIRCUIT |
| 封装： | LOW PROFILE, SURFACE MOUNT PACKAGE |
| 文件页数： | 5/21页 |
| 文件大小： | 162K |
| 代理商： | HFA3726 |
5
35
Mod_RXQ+
Quadrature demodulator positive output. AC coupling is required. Normally connects to the non inverting input of
the Low pass filter (LPF_RXQ+), pin 28.
36
Mod_RXQ-
Quadrature demodulator negative output. AC coupling is required. Normally connects to the inverting input of the
Low pass filter (LPF_RXQ+), pin 27.
37
Mod_TXI+
In phase modulator non inverting input. AC coupling is required. This input is normally coupled to the Low pass
filter positive output (LPF_TXI+), pin 26.
38
Mod_TXI-
In phase modulator inverting input. AC coupling is required. This input is normally coupled to the Low pass filter
negative output (LPF_TXI-), pin 25.
39
Mod_TXQ+
Quadrature modulator non inverting input. AC coupling is required. This input is normally coupled to the Low pass
filter positive output (LPF_TXQ+), pin 24.
40
Mod_TXQ-
Quadrature modulator inverting input. AC coupling is required. This input is normally coupled to the Low pass filter
negative output (LPF_TXQ-), pin 23.
41
Mod_TX_PE
Digital input control to enable the Modulator section. Enable logic level is High for transmit.
42
Mod_TX_IF_Out
Modulator open collector output, single ended. Termination resistor to V
CC
with a typical value of 316
.
43
Mod_RX_PE
Digital input control to enable the demodulator section. Enable logic level is High for receive.
44
Mod_LO_In
(2XLO)
Single ended local oscillator current input. Frequency of input signal must be twice the required modulator carrier
and demodulator LO frequency. Input current is optimum at 200
μ
A
RMS
. Input matching networks and filters can
be designed for a wide range of power and impedances at this port. Typical input impedance is 130
.
This pin
requires AC coupling. (Note 3)
NOTE: High second harmonic content input waveforms may degrade I/Q phase accuracy.
45
Mod_V
CC
Modulator/Demodulator supply pin. Use high quality decoupling capacitors right at the pin.
46
Mod_LO_Out
Divide by 2 buffered output reference from “Mod_LO_in” input. Used for external applications where the modulating
and demodulating carrier reference frequency is required. 50
single end driving capability.This output can be
disabled by use of pin 50. AC coupling is required, otherwise tie to V
CC
.
47
Mod_V
CC
Modulator/Demodulator supply pin. Use high quality decoupling capacitors right at the pin.
48
Mod_IF_In+
Demodulator non inverting input. Requires AC coupling.
49
Mod_IF In-
Demodulator inverting input. Requires AC coupling.
50
LO_GND
When grounded, this pin enables the LO buffer (Mod_LO_Out). When open (NC) it disables the LO buffer.
51, 52,
53
GND
Ground. Connect to a solid ground plane.
54
LIM2_PE
Digital input control to enable the limiter amplifier 2. Enable logic level is High.
55
LIM2_V
CC
Limiter amplifier 2 supply pin. Use high quality decoupling capacitors right at the pin.
56
LIM2_Out-
Positive output of limiter amplifier 2. Requires AC coupling.
57
LIM2_Out+
Negative output of limiter amplifier 2. Requires AC coupling.
58
GND
Ground. Connect to a solid ground plane.
59
RSSI_RL2
Load resistor to ground. Nominal value is 6k
. This load is used to terminate the LIM RSSI current output and
maintain temperature and process variation to a minimum.
60
LIM2_RSSI
Current output of RSSI for the limiter amplifier 2. Connect in parallel with the RSSI output of the amplifier limiter 1
for cascaded response.
61
LIM2_BYP+
DC feedback pin for Limiter amplifier 2. Requires good decoupling and minimum wire length to a solid signal
ground.
62
LIM2_In+
Non inverting analog input of Limiter amplifier 2.
63
LIM2_In-
Inverting input of Limiter amplifier 2.
64
LIM2_BYP-
DC feedback pin for Limiter amplifier 2. Requires good decoupling and minimum wire length to a solid signal
ground.
Pin Description
(Continued)
PIN
SYMBOL
DESCRIPTION
HFA3726
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PDF描述 |
|---|---|
| HFA3726IN | 3.3V 288-mc CPLD |
| HFA3765IA | AGC and Quadrature IF Demodulator |
| HFA3765 | AGC and Quadrature IF Demodulator |
| HFA3765IA96 | AGC and Quadrature IF Demodulator |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| HFA3726/3728 WAF | 制造商:Harris Corporation 功能描述: |
| HFA3726IA | 制造商:未知厂家 制造商全称:未知厂家 功能描述:RF Modulator/Demodulator |
| HFA3726IA96 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:RF Modulator/Demodulator |
| HFA3726IN | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| HFA3726IN WAF | 制造商:Harris Corporation 功能描述: |
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