OQ2538HP NXP Semiconductors, OQ2538HP Datasheet - Page 16

• Manufacturer Part Number: OQ2538HP
• Manufacturer: NXP Semiconductors

Specifications of OQ2538HP

• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Supplier Unconfirmed

Philips Semiconductors
Notes
1. No special cooling is required in the application if the total thermal resistance R
2. The temperature of the PCB in the vicinity of the IC is taken to be the ambient temperature.
3. The input signal must be AC-coupled to the inputs through a coupling capacitance >22 nF.
4. V
5. The DC voltage is fixed internally; only AC-coupling of the input signal is allowed.
6. V
7. See Section “RF input matching circuit” for detailed information.
8. All signal ports are AC-matched to 50
9. See Section “RF gain and group delay measurements”.
10. F is the noise figure for a differential application and is measured at 1 GHz. See Section “Noise figure
11. An external 100 nF capacitor is connected at each output to remove any spurious high frequency signals.
12. Voltage difference between AGC (LOS) and AGCDC (LOSDC), measured with a differential square wave input
13. The offset is measured with inputs IN and INQ shorted together.
14. The band gap voltage may not be used as an external reference.
15. Both outputs are connected to ground through a 50
16. The output levels are dependent on load impedance. The specified values assume an external load impedance of
1998 Oct 14
Band gap reference decoupling: CAPA
V
Main amplifier outputs: OUT and OUTQ; note 15
V
V
t
t
Z
SYMBOL
r
f
o
O
OH
OL
SDH/SONET STM16/OC48 main amplifiers
signal of the specified peak-to-peak value. The lower specified limit is usually called the input sensitivity. This value
is defined as a 20% increase in rise and fall times when compared to rise and fall times with a complementary input
signal of 10 mV (p-p) applied to IN and INQ.
over the entire bandwidth.
measurements”.
Any circuitry driven from these pins must have an input impedance >50 k .
signal of 600 mV (p-p) on IN and INQ.
50 . If the external 100
75% of the specified values (see also Section “RF gain and group delay measurements”).
i(p-p)
IO
= V
is the input signal on IN and INQ for full output clipping. It is assumed that both inputs carry a complementary
decoupling voltage
HIGH-level output voltage
LOW-level output voltage
differential output rise time
differential output fall time
single-ended output impedance
IN
V
INQ
PARAMETER
matching resistors are connected at pins OUT and OUTQ, the output levels will fall to
and are measured at 1 GHz (see Fig.7). Flatness deviations are within 3 dB
referenced to V
open output
note 16
input signal >2.5 mV (p-p)
input signal >2.5 mV (p-p)
see Fig.6
load resistance and carry complementary signals.
16
CONDITIONS
EE
;
83
OQ2538HP; OQ2538U
20
280
MIN.
th(j-a)
is less than 90 K/W.
2.9
100
100
100
5
200
TYP.
Product specification
0
150
150
117
140
MAX.
V
mV
mV
ps
ps
UNIT