Anritsu MT8820A - Page 9

Section
Section Section
Section 2 Circuit Description
2 Circuit Description2 Circuit Description
2 Circuit Description
2-
2-2-
2-1
11
1
2.1 Outline ....................................................................... 2-2
2.1.1 Outline of Circuitry......................................... 2-2
2.1.2 Power Line Description ................................. 2-9
2.1.3 Signal Lines Description................................ 2-10
2.2 Circuit Description of Each Unit................................. 2-15
2.2.1 A01 Main CPU Unit ....................................... 2-15
2.2.2 A41, A42 WCDMA COM Unit........................ 2-18
2.2.3 A51, A52 WCDMA BB Unit ........................... 2-21
2.2.4 A61, A62 MEAS DSP Unit............................. 2-23
2.2.5 A02 DAC/ADC Unit ....................................... 2-27
2.2.6 A71, A72 RF Unit .......................................... 2-30
2.2.7 A7101, A7201 Input LPF ............................... 2-33
2.2.8 A7102, A7202 Output AMP........................... 2-33
2.2.9 A7103, A7203 RF.......................................... 2-33
2.2.10 A7104, A7204 IF ........................................... 2-33
2.2.11 A81, A82 Local Unit....................................... 2-34
2.2.12 A04 Reference Unit ....................................... 2-39
2.2.13 A05 Mother Board ......................................... 2-43
2.2.14 A07 Panel Control Unit.................................. 2-44
2.2.15 Power Supply Unit......................................... 2-47
2.2.16 A21, A22 TDMA COM Unit............................ 2-48
2.2.17 A03 AUDIO Unit ............................................ 2-53