DXW21BN7511SL Murata

Reference Only SpecNo.JEFK243A-0001J-01 P1/9 Micro Chip Transformer DXW21BN7511 Reference Specification 1. Scope This reference specification applies to Micro Chip Transformer. 2. Part Numbering (ex.) DX W 21 B N 75 11 T L (1) (2) (3) (4) (5) (6) (7) (8) (9) (1) Micro Chip Transformer (6) Port Impedance (75: 75ohm) (2) Structure (W: Winding Type) (7) Impedance ratio (11: one to one) (3) Dimension (LW) (8) Main Application (T: Televisions/ S: Satellite STB) (4) Type of Transformer (B: Balun) (9) Packing Code L:Taping / B:Bulk (5) Category 3. Electrical Specification 1 CMRR Freq. Port Insertion Loss DC Customer Murata dB min. Range Impedance dB max. Resistance Part Number Part Number at Freq. ohm at Freq. Range ohm max. Range DXW21BN7511TL 50-1200 50-870MHz:max.1.0 75/75 20 0.77 DXW21BN7511TB MHz 870-1200MHz: max.1.2 DXW21BN7511SL 1-1.5 75/75 1.4 20 0.59 DXW21BN7511SB GHz Electrical Specification 2 Rated Withstand Rated Insulation Voltage Voltage Power Resistance DCV DCV dBm Mohm min. 20 50 27 10 Operating Temperature : -40 to +85C Storage Temperature : -40 to +85C 4. Standard Testing Condition <Unless otherwise specified> <In case of doubt> Temperature : Ordinary Temperature 15 to 35C Temperature : 20 2C Humidity : Ordinary Humidity 25 to 85%(RH) Humidity : 60 to 70%(RH) Atmospheric Pressure : 86 to106kPa 5. Style and Dimensions Eqivalent Circuit Dimension (2) (1) B1 UB 1.20.2 B2 2.00.2 (4) (3) No Polarity (0.45) (0.45) (1) (2) : Electrode () : Reference Value Unit Mass (typ.) (in mm) 0.011g (3) (4) 6. Marking No Marking. MURATA MFG.CO., LTD 1.20.2 (0.4) (0.4) (0.17)Reference Only SpecNo.JEFK243A-0001J-01 P2/9 7. Electrical Performance No. Item Specification Definition and Measurement Method 7.1 Insertion Meet item 3. Insertion Loss is given by Sds21 mag. extracted from the below circuit. Loss (IL) IL dB = 20log (Sds21) 10 Where Sds21 is S-parameter of single mode stimulus - Differential mode response Parasitics and loss factors caused by the test board have to be removed. UB B1 PORT1 PORT2 B2 75 37.5 PORT3 37.5 7.2 CMRR Meet item 3. CMRR is given by the following equation, S-parameters are extracted from the below circuit. CMRR dB = 20log10(Sds21/Scs21)=20log10 (S21+S31)/(S21-S31) Where Sds21 is S-parameter of single mode stimulus - Differential mode response Scs21 is S-parameter of single mode stimulus - Common mode response Parasitics and loss factors caused by the test board have to be removed. UB B1 PORT1 PORT2 B2 75 37.5 PORT3 37.5 7.3 Withstand No damage. Test Voltage : 50V Voltage Time : 5 seconds Charge Current : 1mA max. UB B1 Terminal to be tested B2 Terminal to be tested DC 7.4 Meet item 3. Measuring current : 10mA max. Resistance (In case of doubt in the above mentioned standard condition, measure by (Rdc) 4 terminal method.) UB B1 Terminal to be tested Terminal to be tested B2 and UB B1 B2 Terminal to betested Terminal to be tested Insulation 7.5 Meet item 3. Measuring voltage : Rated Voltage Resistance Measuring time : 1 minute max. (I.R.) UB B1 Terminal to be tested B2 Terminal to be tested MURATA MFG.CO., LTD