admv4530采用IF mode,外部VCTR_IF控制,最大增益条件下RF输出功率Max只到0dBm就趋于饱和,距手册中描述的P1db=19dBm相距很大,请问是哪里配置的问题?
admv4530采用IF mode,外部VCTR_IF控制,最大增益条件下RF输出功率Max只到0dBm就趋于饱和,距手册中描述的P1db=19dBm相距很大,请问是哪里配置的问题?
非常感谢您的支持,答复如下:
1.输出频点正确;
2.VCTR_RF=1.8V,VCTR_IF=0V,输出功率会随着增益变化而变化,但输出RF到0dbm左右就趋向饱和;
3.有点怀疑是IF增益饱和;
4.原理图和Evaluation Board无差异,配置文件如下:
0x00000010 | 0x44 | REGMAP1 |
0x00000011 | 0x00 | REGMAP1 |
0x00000012 | 0x40 | REGMAP1 |
0x00000014 | 0x00 | REGMAP1 |
0x00000015 | 0x00 | REGMAP1 |
0x00000016 | 0x00 | REGMAP1 |
0x00000017 | 0x00 | REGMAP1 |
0x00000018 | 0x00 | REGMAP1 |
0x00000019 | 0x01 | REGMAP1 |
0x0000001A | 0x00 | REGMAP1 |
0x0000001B | 0x09 | REGMAP1 |
0x0000001C | 0x00 | REGMAP1 |
0x0000001D | 0x080 | REGMAP1 |
0x0000001E | 0x58 | REGMAP1 |
0x0000001F | 0x01 | REGMAP1 |
0x00000020 | 0x14 | REGMAP1 |
0x00000022 | 0x00 | REGMAP1 |
0x00000025 | 0x03 | REGMAP1 |
0x00000026 | 0x00 | REGMAP1 |
0x00000027 | 0x0E2 | REGMAP1 |
0x00000028 | 0x03 | REGMAP1 |
0x0000002A | 0x00 | REGMAP1 |
0x0000002B | 0x01 | REGMAP1 |
0x0000002C | 0x01 | REGMAP1 |
0x00000030 | 0x54 | REGMAP1 |
0x00000031 | 0x02 | REGMAP1 |
0x00000032 | 0x00 | REGMAP1 |
0x00000033 | 0x04 | REGMAP1 |
0x00000034 | 0x080 | REGMAP1 |
0x00000035 | 0x0FF | REGMAP1 |
0x00000036 | 0x30 | REGMAP1 |
0x00000037 | 0x00 | REGMAP1 |
0x00000038 | 0x00 | REGMAP1 |
0x00000039 | 0x07 | REGMAP1 |
0x0000003A | 0x55 | REGMAP1 |
0x0000003E | 0x0C | REGMAP1 |
0x0000006E | 0x00 | REGMAP1 |
0x0000006F | 0x00 | REGMAP1 |
0x00000073 | 0x00 | REGMAP1 |
0x0000007C | 0x00 | REGMAP1 |
0x00000000 | 0x18 | REGMAP2 |
0x00000001 | 0x00 | REGMAP2 |
0x00000003 | 0x01 | REGMAP2 |
0x00000004 | 0x21 | REGMAP2 |
0x00000005 | 0x00 | REGMAP2 |
0x0000000A | 0x00 | REGMAP2 |
0x0000000B | 0x01 | REGMAP2 |
0x0000000C | 0x56 | REGMAP2 |
0x0000000D | 0x04 | REGMAP2 |
0x00000100 | 0x03 | REGMAP2 |
0x00000101 | 0x7D | REGMAP2 |
0x00000102 | 0x3F | REGMAP2 |
0x00000103 | 0x5B | REGMAP2 |
0x00000104 | 0x5F | REGMAP2 |
0x00000105 | 0x5F | REGMAP2 |
0x00000106 | 0x5F | REGMAP2 |
0x00000107 | 0x5F | REGMAP2 |
0x00000108 | 0x5F | REGMAP2 |
0x00000109 | 0x5F | REGMAP2 |
0x0000010C | 0x08 | REGMAP2 |
0x0000010D | 0x01 | REGMAP2 |
0x00000115 | 0x08 | REGMAP2 |
0x00000116 | 0x00 | REGMAP2 |
0x00000117 | 0x4C | REGMAP2 |
0x00000119 | 0x08 | REGMAP2 |