BWD MINI-LAB 603B Manual page 5

2.
PERFORMANCE
(continued)
2.9
Amplitude Modulation:
0
to
100%
modulation
all
output waveforms
from
O.OOlHz
to
2MHz.
Input;
4
volts
p-p for
90%
modulation.
'
Input resistance:
approximately
lOKQ.
Modulation
input range:
DC
to
250kHz.
An
input
voltage
may
also
be used
to
control the output
level
remotely from 0.5
to
20
volts p-p.
NOTE:
Unmodulated
carrier output
level
is
10 volts
p-p,
and 20
volts p-p at
peak modulation
(open
circuit).
Both
AM
and
FM
modulation can be applied
simultaneously.
2.10 TTL
Output:
Identical pulse width
to
main
output.
> 3
volts
output
into
2 TTL
inputs.
<80n
sec
rise
and
fall
time.
Selectable Power
Source:
2.11 Amplifier
Gain:
Voltage,
fixed
xlO. Input 3
volts p-p for
30
volts
p-p
output
maximum.
Current gain approximately x5000.
Input:
lOKQ,
inverting input only.
Frequency
response:
DC
to
>80khz
at
20
volts
p-p
into 15Q.
Rise time:
<
5p
sec
for
±
10
volts
output swing.
Maximum
output: ±15
volts
minimum
±1
amp
current (automatic
overload). 7 Watts
RMS
into
15Q
load.
±
15
volts
into>15Q.
Distortion:
<0.1%
at
1
kHz
increasing
to
<0.5%
at
20kHz
at
full
output
(+ 15 volts into
15Q).
Hum
and
noise;
60db below max.
output
(<30mV
p"p).
Output impedance; <0.2Q.
2.12
Bi-Polar
power
supply
Voltage Range: Continuously variable from
+
15
volts
through zero
to
-15
volts.
Current
1
amp maximum
at
any
voltage setting (automatic overload).
Output impedance: <0.2Q.
Hum
and
noise:
<25mV
p-p
(5mV
rms)
at
full
output (15
volts at
1
amp).
2.13
Fixed
power
supply:
Voltage
+
5
volts
Current
1
amp
with automatic overload
Output impedance:
<0.5Q.
Hum
and
noise:
<25mV
p-p at
full
output
(8mV rms).
Voltage/Operational
amplifier;
2.14
Amplifier
Gain: Continuously
variable from xl
to
xlOO approximately.
Input:
Balanced
lOKQ
each
side to
ground with gain
control
in
circuit.
Input
overvoltage
proof.
Frequency
response;
DC
to
> 80kHz -
3db
at
all
gain
settings.
Slew
rate;
4V/p
sec.
Output
lmpedance:<500fi
(short circuit proof).
Output
noise at
XICO
gain
(input
open
circuit):
<40mV
p"p.
2-2
603B