1646-DEMO THAT Corporation, 1646-DEMO Datasheet
1646-DEMO
Specifications of 1646-DEMO
Related parts for 1646-DEMO
1646-DEMO Summary of contents
Page 1
... Low noise: -101 dBu • Low distortion: 0.0007% @ 1kHz • Industry-standard pinout • The THAT 1606 and 1646 are a new generation of monolithic audio differential line drivers offering improved performance over conventional cross-cou- pled designs. Based on a high-performance, fully dif- ferential opamp ...
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... Balanced, 22Hz -20kHz 0.1% THD+N C =50pF/output L C =50pF/output L w/o Sense capacitors w/ Sense capacitors No Load No Load = 600 W Balanced =±18V, T=25° SOURCE THAT1606/1646 Balanced Line Driver ICs = 25°C) ) -55 to +125° 125°C J )(Soldering 60 sec) 300°C LEAD 3 Min. Typ. Max. Units 4.00 5. ...
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... THAT1606/1646 Balanced Line Driver ICs 1646 Electrical Characteristics (cont’d) Parameter Symbol Maximum Capacitive Load Quiescent Supply Current I S Output Short Circuit Current I SC Power Supply Voltage Range 1606 Electrical Characteristics Parameter Symbol Input Impedance Z IN Gain G1 Gain G2 Gain Error G1 DC Power Supply ...
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... Copyright © 2007, THAT Corporation; All rights reserved. Page Conditions Both outputs to ground THAT 1646 10k 25 10k 10k Dout- 10p & Dout+ 10k 10k 10k 25 Figure 2. THAT 1646 Equivalent Circuit Diagram C EXT Cap2 Cap1 R EXT 25 10k 10k Din+ Dout- 10k Cin+ A & A Cin Din- ...
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... This is true for the core of the 1606 and 1646 ICs start with that assumption, the operation of the com- mon-mode feedback loop can be intuited as follows: ...
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... For balanced signals, the load capacitance across the 1646 outputs will be 34 pF/ft + 16.5 pF/ft = 50.5 pF/ft. The corner frequency of the THAT 1646 driving 500 ft of this ca- ble (25.25 nF) will be 126 kHz × ...
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... Thus the peak levels at 20kHz will be 12dB below those at 5kHz. Using these, we can calculate the required slew rate and current drive. For the +26 dBu output lev- els that the 1646 is capable of, VPeak is 22V (below 5kHz), and at 20kHz, VPeak is 5.5V. Therefore × ...
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... Figure 7. Basic THAT 1606 application circuit with output common mode offset reduction and differential drive 1606 circuits Figure 6 shows the most basic connection for a 1606. The 1606 differs from the 1646 in two re- spects. First, the 1606 includes a negative-sense in- put pin (pin 6), so offers a differential input. This can be useful in connecting the output driver to the output of modern D/A converters, which usually pres- ent differential outputs ...
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... C5 100n Vee Figure 8. 1646 with output common mode offset protection and RFI protection other portions of the circuit. The capacitors should be located as close as possible to the output connec- tor and connected via a low-inductance path to chas- sis ground, with the ferrite beads placed very nearby. ...
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... Figure 9, is recommended. This shunts the discharge current to the power supply bypass and filter capacitors, thus protecting the output of the 1606 or 1646. Note that Figure 9 shows a 1606, but a 1646, with appropriate connection as shown in Figure 4 or Figure 5, may be substituted. SO8 ...
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... THAT1606/1646 Balanced Line Driver ICs 0-8° hx45° ITEM MILLIMETERS INCHES A 4.78/5.00 0.188/0.197 a1 0.004/0.008 0.10/0.20 B 3.81/3.99 0.150/0.157 C 5.84/6.20 0.230/0.244 D 0.36/0.46 0.014/0.018 E 1.27 0.050 F 1.52/1.73 0.060/0.068 G 0.18/0.25 0.007/0.010 H 0.41/0.89 0.016/0.035 h 0.31/0.71 0.012/0.027 Figure 10. 8 pin SO package outline drawing ITEM MILLIMETERS INCHES ...
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... Document 600078 Rev 04 THAT Corporation; 45 Sumner Street; Milford, Massachusetts 01757-1656; USA Tel: +1 (508) 478-9200; Fax: +1 (508) 478-0990; Web: www.thatcorp.com Copyright © 2007, THAT Corporation; All rights reserved. Page THAT1606/1646 Balanced Line Driver ICs NOTES ...