发明名称 |
Floating point digital to analog converter with bias to establish range midpoint |
摘要 |
A digital-to-analog converter converts digital data in the floating-point representation into an analog signal. The mantissa part of the digital data is first converted into a first analog signal by an R-2R resistor ladder network. The first analog signal thus obtained is directly supplied to another r-2r resistor ladder network to produce second analog signals whose values are 2-N(N=0, 1, 2, . . . ) magnifications of the first analog signal. And, one of the second analog signals is selectively outputted in accordance with the exponent part of the digital data. A data converter is also provided for converting digital data in the form of a fix-point number into floating point data.
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申请公布号 |
US5021785(A) |
申请公布日期 |
1991.06.04 |
申请号 |
US19900463876 |
申请日期 |
1990.01.05 |
申请人 |
YAMAHA CORPORATION |
发明人 |
KOHDAKA, TAKAYUKI;ISHIDA, KATSUHIKO;TAKAHASHI, TOSHIYUKI;OGATA, TAKASHI |
分类号 |
H03M1/70;H03M1/78 |
主分类号 |
H03M1/70 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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