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PDF HMC844LC4B Data sheet ( Hoja de datos )
| Número de pieza | HMC844LC4B | |
| Descripción | XOR / XNOR | |
| Fabricantes | Hittite Microwave | |
| Logotipo |  |
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v03.0914
HMC844LC4B
45 Gbps, XOR / XNOR
w/ PROGRAMMABLE OUTPUT VOLTAGE
Typical Applications
The HMC844LC4B is ideal for:
• RF ATE Applications
• Broadband Test & Measurement
• Serial Data Transmission up to 45 Gbps
• Digital Logic Systems up to 25 GHz
Features
Supports High Data Rates: up to 45 Gbps
Differential & Singe-Ended Operation
Fast Rise and Fall Times: 11 / 10 ps
Low Power Consumption: 510 mW
Programmable Differential
Output Voltage Swing: 200 - 850 mVp-p
Single Supply: -3.3V
24 Lead 4x4 mm SMT Package: 16 mm2
Functional Diagram
General Description
The HMC844LC4B is an XOR/XNOR function des-
igned to support data transmission rates of up to
45 Gbps, and clock frequencies as high as 25 GHz.
The HMC844LC4B may be easily configured to
provide either XOR or XNOR logic functions. The
HMC844LC4B also features an output level control pin,
VAC, which allows for loss compensation or for signal
level optimization.
All input signals to the HMC844LC4B are terminated
with 50 Ohms-to-ground on-chip, and may be either
AC or DC coupled. The differential outputs of the
HMC844LC4B may be either AC or DC coupled.
Outputs can be connected directly to a 50 Ohms-to-
ground terminated system, while DC blocking capa-
citors should be used if the terminating system is 50
Ohms to a non-ground DC voltage. The HMC844LC4B
operates from a single -3.3V DC supply, and is available
in a ceramic RoHS compliant 4x4 mm SMT package.
Electrical Specifications, TA = +25°C, Vee = -3.3V
Parameter
Conditions
Min.
Typ.
Max
Units
Power Supply Voltage
Power Supply Current
±5 % Tolerance
VAC = -0.3V
-3.47
-3.3
-3.13
V
140 155 170 mA
Output Amplitude Control Voltage (VAC)[1]
-1.7 -0.3 -0.1 V
Maximum Data Rate
Maximum Clock Rate
45 Gbps
25 GHz
Input Amplitude
Input High Voltage
Single-ended, peak-to-peak
Differential, peak-to-peak
100
100
-0.5
300
1000
0.5
mVp-p
V
Input Low Voltage
-1 0 V
Output Amplitude
Differential, peak-to-peak
@ 40 Gbps
200
850 mVp-p
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1 page  
v03.0914
HMC844LC4B
45 Gbps, XOR / XNOR
w/ PROGRAMMABLE OUTPUT VOLTAGE
40 Gbps Differential Output Eye Diagram
Eye Amp
Rise Time
Fall Time
p-p Jitter
Measurements
Current
Min
Max
811 mV
12.89 ps
13.78 ps
3.111 ps
811 mV
12.67 ps
13.56 ps
3.111 ps
813 mV
12.89 ps
13.78 ps
3.111 ps
Total
Meas.
39
39
39
39
Time Scale: 10 ps/div
Amplitude Scale: 200 mV/div
Test Conditions:
Vee = -3.3V, VAC = -0.3V
A Input: 40 Gbps PRBS 223-1 pattern, 150 mVp-p single-ended
B Input: 40 Gbps 10101... pattern, 150 mVp-p single-ended
Timing Diagram
Truth Table
Input
AB
LL
LH
HL
HH
Notes:
A = AP - AN
B = BP - BN
D = OUTP - OUTN
H - Logic High
L - Logic Low
Outputs
D
L
H
H
L
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4
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