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BJDEEN PULSE TRANSFORMERS
Phone: ; 8 6-10-51645720 Fax:8 : 6-10-51645721
Web site: .WWW.BJDEEN.COM
MIL-STD-1553 TRANSFORMERS ( US ) GJB289A-97 TRANSFORMERS ( CHINA )
MADE IN CHINA
FEATURES
• Complete Line of Custom and
GJB Units
DESCRIPTION AND APPLICATIONS
The military data bus specification, MIL-STD-1553, has brought about the need for versatile pulse transformers that meet all the electrical requirements of Manchester II serial biphase data transmission. Our various package styles provide the turns ratio configurations, component isolation, and common-mode rejection ratio characteristics necessary for MIL-STD-1553A and B compliance(CHINA GJB289A-97).
• For Use with MIL-STD-1553A
and B, MacAir A-5690, A-5232, and A-4905 GJB289A-97(CHINA)
• Low Profile • Epoxy Cased, Hermetically
Sealed
Hermetically sealed or epoxy cased, these transformers are mulitapped to accommodate existing system configurations.Encapsulated in accordance with MIL-PRF-21038, their tin-coated, copper-clad steel leads (epoxy-cased units) conveniently accommodate printed circuit board mounting. Sinusoidal or trapezoidal waveforms are accurately processed, making these transformers an excellent choice for any MIL-STD-1553A or B application.
• -55°C to +130°C Operating
Temperature Range
• Built and Tested to MIL-PRF21038 and MIL-STD-202 GJB1521-92(CHINA)
N:1
OVERSHOOT AND RINGING ±1 V MAX
ED
E IN
E OUT
90% EOUT
tr
tf
E IN = 10 V rms at 1 MHz E Calc: CMR = 20 log IN (see note) E OUT
FIGURE 2. CIRCUIT FOR COMMON-MODE REJECTION
10% ED % DROOP = ED E OUT x 100% E IN (SEE NOTE) E OUT (SEE NOTE) EOUT
360 Ω
1:N
t r = value as per Specifications Table
FIGURE 1. WAVEFORM INTEGRITY
EIN = 250 kHz square wave, 27.0 volts peak-to-peak with a rise and fall time no greater than 100 ns. Calc : Droop = ED E OUT x 100%. (see figure 1 for E D )
FIGURE 3. CIRCUIT FOR WAVEFORM INTEGRITY
Note: Input to be applied and output to be measured for all dash numbers as shown. N represents highest turns winding in each test. © 1996, 1999 Data Device Corporation
BEIJING DEEN ELECTRONIC CO.,LTD
TEL86-10-51645720• FAX86-10-51645720
PULSE TRANSFORMER CROSS REFERENCE LIST1
TRANSFORMER CHARACTERISTICS
TRANSCEIVER TYPE
PIN NOS.
TURNS RATIO
-Epoxy Unit -PC Mount -Ht. (see below) -Config. A -*Config. A 0.250" Ht. *25679 DNB-2203 (-02) 0.220" Ht. *41429 0.275" Ht. *29854 0.300" Ht. *27765 DNB-2202 (-01) 0.250" Ht. DNB-3226 (-26) 0.300" Ht. DNB-2205 (-04) 0.250" Ht. DNB-2204 (-03) 0.250" Ht. DNB-2385 (-10)
-Epoxy Unit -Flat pack -0.275" Ht. -Config. B
-Epoxy Unit -Surface Mt. -0.275" Ht. -Config. C
-Epoxy Unit -Flat pack -LPB Series -0.150" Ht. -Config. D
-Epoxy Unit -Surface Mt. -LPB Series -0.150" Ht. -Config. E
-Epoxy Unit -PC Mount -TST 9000 Series -0.280" Ht. -Config. F
-Epoxy Unit -Surface Mt. -TST 9000 Series -0.280" Ht. -Config. G
1
1-3:4-8 1-3:5-7 1-3:4-8 1-3:5-7 1-3:4-8 1-3:5-7 1-3:4-8 1-3:5-7 1-3:4-8 1-3:5-7 4-8:1-3 5-7:1-3
1.4:1 2:1 1:2.5 1:1.75 1.20:1 1.67:1 1:1 1:0..