Audio Technica AT897 Specification Sheet

AT897
LINE + GRADIENT CONDENSER MICROPHONE
• Designed for video production and broadcast (ENG/EFP) audio
acquisition
• Short length (11") ensures mic stays out of the shot – even when
used with compact digital cameras
• Smooth, natural-sounding on-axis audio quality
• Provides the narrow acceptance angle desirable for long-distance
sound pickup
• Excellent sound rejection from the sides and rear of mic
• Switchable low-frequency roll-off
• Operates on battery or phantom power
The AT897 requires 11V to 52V DC phantom power or a 1.5V AA
battery for operation. A battery need not be in place for phantom
power operation.
Battery installation: Unscrew the lower section of the microphone
body, just below the nameplate. Insert a fresh 1.5V AA battery
in the handle compartment ("+" end up), then reassemble the
microphone. Alkaline batteries are recommended for longest life.
Remove the battery during long-term storage.
Output from the microphone's XLRM-type connector is low
impedance (Lo-Z) balanced. The signal appears across Pins 2 and
3; Pin 1 is ground (shield). Output phase is "Pin 2 hot" –
positive acoustic pressure produces positive voltage at Pin 2.
To avoid phase cancellation and poor sound, all mic cables must
be wired consistently: Pin 1-to-Pin 1, etc.
An integral 80 Hz high-pass filter provides easy switching from a
flat frequency response to a low-end roll-off. The roll-off position
reduces pickup of low-frequency ambient noise (such
as traffic, air-handling systems, etc.), room reverberation and
mechanically coupled vibrations.
The microphone is RoHS compliant–free from all substances
specified in the EU directive on hazardous substances.
Avoid leaving the microphone in the open sun or in areas where
temperatures exceed 43° C (110° F) for extended periods.
Extremely high humidity should also be avoided.
AT897 SPECIFICATIONS †
ELEMENT
POLAR PATTERN
FREQUENCY RESPONSE
LOW FREQUENCY ROLL-OFF
OPEN CIRCUIT SENSITIVITY
(Phantom / Battery)
IMPEDANCE (Phantom / Battery)
MAXIMUM INPUT SOUND LEVEL
(Phantom / Battery)
SIGNAL-TO-NOISE RATIO
1
DYNAMIC RANGE (typical)
(Phantom / Battery)
PHANTOM POWER
REQUIREMENTS
BATTERY TYPE
BATTERY CURRENT / LIFE
SWITCH
WEIGHT (less accessories)
DIMENSIONS
OUTPUT CONNECTOR
ACCESSORIES FURNISHED
† In the interest of standards development, A.T .U.S. offers full details on its test
methods to other industry professionals on request.
*1 Pascal = 10 dynes /cm 2 = 10 microbars = 94 dB SPL
1 Typical, A-weighted, using Audio Precision System One.
Specifications are subject to change without notice.
Polar Pattern
0
330 30
300 60
270 90
240 120
50 100
210 150
180
SCALE IS 5 DECIBELS PER DIVISION
LEGEND
LEGEND
200 Hz
1 kHz
5 kHz
8 kHz
Audio-Technica U.S., Inc., 1221 Commerce Drive, Stow, Ohio 44224
Audio-Technica Limited, Old Lane, Leeds LS11 8AG England
www.audio-technica.com
P51973 ©2007 Audio-Technica U.S., Inc.
Fixed-charge back plate
permanently polarized
condenser
Line + gradient
20-20,000 Hz
80 Hz, 12 dB/octave
–40 dB (10.0 mV) /
–41 dB (8.9 mV) re 1V at 1 Pa*
200 ohms / 300 ohms
129 dB / 115 dB SPL,
1 kHz at 1% T.H.D.
77 dB, 1 kHz at 1 Pa*
112 dB / 98 dB,
1 kHz at Max SPL
11-52V DC, 2 mA typical
1.5V AA/UM3
0.4 mA / 1200 hours typical
(alkaline)
Flat, roll-off (recessed)
145 g (5.1 oz)
279.0 mm (10.98") long,
21.0 mm (0.83") diameter
Integral 3-pin XLRM-type
AT8405a stand clamp for 5 /
threaded stands; AT8134
windscreen; battery; 5 / "-27 to
8
/ "-16 threaded adapter;
3
8
protective carrying case
Frequency Response
200 500 1k 2k 5k 10k 20k
Frequency in Hertz
12" or more on axis (flat)
Roll-off
Printed in Japan
"-27
8
10 dB