From 4d45177ff03febccd8f33085d91f6c2f4abaa8a7 Mon Sep 17 00:00:00 2001
From: Aleksey Baranov <al.baranov@yadro.com>
Date: Thu, 26 Mar 2026 11:19:43 +0300
Subject: [PATCH] vault backup: 2026-03-26 11:19:43

---
 ATE B8B20/B8B20 Arhitecture.md | 101 +++++++++++++++++++--------------
 1 file changed, 58 insertions(+), 43 deletions(-)

diff --git a/ATE B8B20/B8B20 Arhitecture.md b/ATE B8B20/B8B20 Arhitecture.md
index 3a8c47c..9d47e87 100644
--- a/ATE B8B20/B8B20 Arhitecture.md	
+++ b/ATE B8B20/B8B20 Arhitecture.md	
@@ -47,55 +47,70 @@ HLBD Signal Path
 1. Архитектура:
 	1. 2 канала TX на плате и 1 DPD
 	2. Power Supply:
-		1. 
+		1. 12V0_VDD 
+			1. Current = 0.12A 
+				1. Converted to:
+					1. 7.5
+					2. 5.5
+		2. 48V0_PA_CH1 
+			1. Current = 6.5A
+		3. 48V0_PA_CH2 
+			1. Current = 6.5A
 2. Интерфейсы PAM:
-	1. Connection to DM
-		1. 
-	2. IC of I2C Bus:
-		1. **Bias Controller**
-			1. BGMC1210E6327XUMA
-			2. Adr: 0x40
-			3. Управление смещениями для:
-				1. Amp CH1 и CH2 
-				2. PreAmp CH1 и CH2
-				   
-		2. **EEPROM**
-			1. CAT24C256WI-GT
-			2. Adr: 0x50
-			   
-		3. **I2C Expander U36**
-			1. MCP23017T-E/ML
-			2. Adr: 0x20
-			3. Input 
-				1. PG_N7V0_BIAS_3V3
-				2. FLT_48V0_VDD_CH1
-				3. FLT_48V0_VDD_CH1
-				4. REFL_PROT_CH1
-				5. REFL_PROT_CH2
-			4. Output:
-				1. RST_REFL_TRIG_CH1
-				2. RST_REFL_TRIG_CH2
-				3. RST_REFL_FLT_CH1
-				4. RST_REFL_FLT_CH2
-			5. GPIO to DM
+	1. 40 PIN Connection to DM
+		1. 66H8-M040S1075R01
+			1. I2C - Bus 
+			2. GPIO
 				1. ALARM_VDD_AMPS_TX (INT_A)
 				2. ALARM_REFL_PROT (INT_B)
 				3. EXP_RST_3V3
+				4. EN_TX_CH1_3V3
+				5. EN_TX_CH2_3V3
+3. Digital Periferal of I2C Bus:
+	1. **Bias Controller**
+		1. BGMC1210E6327XUMA
+		2. Adr: 0x40
+		3. Управление смещениями для:
+			1. Amp CH1 и CH2 
+			2. PreAmp CH1 и CH2
 			   
-		4. **I2C Expander U37**
-			1. MCP23017T-E/ML
-			2. Adr: 0x21
-			3. Input 
-				1. PG_N7V0_SAFE_TC_3V3
-			4. Output:
-				1. EN_VDD_AMPS_TX_CH1
-				2. EN_VDD_AMPS_TX_CH2
-				3. RST_BIAS_CTRL_CH1
-				4. SW_DPD12_3V3
-			5. GPIO to DM
-				1. EXP_RST_3V3
+	2. **EEPROM**
+		1. CAT24C256WI-GT
+		2. Adr: 0x50
+		   
+	3. **I2C Expander U36**
+		1. MCP23017T-E/ML
+		2. Adr: 0x20
+		3. Input 
+			1. PG_N7V0_BIAS_3V3
+			2. FLT_48V0_VDD_CH1
+			3. FLT_48V0_VDD_CH1
+			4. REFL_PROT_CH1
+			5. REFL_PROT_CH2
+		4. Output:
+			1. RST_REFL_TRIG_CH1
+			2. RST_REFL_TRIG_CH2
+			3. RST_REFL_FLT_CH1
+			4. RST_REFL_FLT_CH2
+		5. GPIO to DM
+			1. ALARM_VDD_AMPS_TX (INT_A)
+			2. ALARM_REFL_PROT (INT_B)
+			3. EXP_RST_3V3
+		   
+	4. **I2C Expander U37**
+		1. MCP23017T-E/ML
+		2. Adr: 0x21
+		3. Input 
+			1. PG_N7V0_SAFE_TC_3V3
+		4. Output:
+			1. EN_VDD_AMPS_TX_CH1
+			2. EN_VDD_AMPS_TX_CH2
+			3. RST_BIAS_CTRL_CH1
+			4. SW_DPD12_3V3
+		5. GPIO to DM
+			1. EXP_RST_3V3
 
-3. Интерфейсы:
+4. Интерфейсы:
 	1.