Samsung MAX-485 - Page 17

6. Basic circuit operation
6-1. Amp / Tuner Section
6-1-1. DSP section M65830P: TIC12
Pin No. | Name Te) Function Active
| 1 | VDD - Digital Vdd supply voltage
| XIN | Oscillator input connects to 2MHz ceramic filter or inputs an
external clock
3 X OUT O Oscillator output connects to 2MHz ceramic filter
4 REQ l Request inputs request data from u-com
5 | SCK | Shift clock inputs shift clock from p-com
6 | DATA | Serial data inputs serial data from t-com
7 | IDSW | ID switch controls ID code
8 | IDFLAG oO ID flag outputs pulse at setting function mode and function mode
| data
9 TEST1 l L= normal mode
10 TEST2 | L= normal mode
11 D GND - Digital GND connects to analog GND at one point
12 A GND - Analog GND connects to analog GND
13 LPF2 OUT O Low pass filter2 output forms low pass filter with external C.R
14 LPF2 IN I Low pass filter2 input forms low pass filter with external C.R
15 | OP2 OUT O OP-AMP2 output forms integrator with external C
16 OP2 IN | OP-AMP2 input forms integrator with external C
17 | CC2 - Current contrl 2
18 CC1 - Current contri 1
19 | REF - Reference = 1/2Vcc
20 | OPIIN oO OP-AMP1 input forms integrator with external C.R
21 OP1 OUT O OP-AMP1 output forms integrator with external C.R
22 LPF1 OUT O Low pass filter1 output forms low pass filter with external C.R
23 LPF1 IN | Low pass filter1 input forms low pass filter with external C.R
24 VCC Analog Vcc supply voltage
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