12 Pin Descriptions

Pin 1: LDO Fault monitor. Will be low in normal operation. Will be high if either LDO has a fault. The LDO with a fault will be disabled until the fault condition is cleared.

Pin 2: RSSI Voltage Input from detector circuit

Pin 3: Over Temperature monitor - Will be high if IC die temperature exceeds 95C and low in normal operation. If the die temperature exceeds 95 °C, both LDOs will be completely disabled until the temperature drops.

Pin 4: Manual high power assert. Pulling this pin low will set the output of the 3 bit lookup table high, turning on the LNA (if enabled) and setting LDO0 to Power Switch mode and setting pins 10 and 19 high.

Pin 5: Voltage monitor input. It monitors the 5 V input line and if it drops below 4 V, Comparator 1 is driven low resulting in high power mode being disabled. This is designed to save battery power in a battery operated circuit.

Pin 6: LNA Enable. If this pin is set high, the LNA will be enabled during high power operations.

Pin 7: Vdd - This pin should be set to the supply voltage - 5 V (note: The SLG46582 has a maximum Vdd of 6 V).

Pin 8 and Pin 9: SCL and SDA pins respectively for the I2C interface. Any of the IC's functions can be accessed via I2C. Additionally, any function can be reprogrammed during operation (for example, a different RSSI threshold could be set). Any reprogramming will revert to the default values when the IC is power cycled.

Pin 10: HP Enabled - This pin will be set high if high power mode is enabled and there is no temperature fault and no LDO fault.

Pin 11, 13: LDO0 output. Connected to the PHA-23LN+

Pin 12: LDO0 Input - This should be set to the 5 V Vdd line

Pin 14, 16: LDO1 output. Connected to the TSY-13LNB+

Pin 15: LDO1 Input - This should be set to the 5 V Vdd line

Pin 17: Ground

Pin 18: LNA Enable/Bypass - Set high if the LNA is enabled and operating and there is no temperature or LDO fault. Set low if the LNA is disabled and in bypass mode

Pin 19: DSA Control: Set to high in High Power mode, set low in normal operating mode

Pin 20: Ground

The SLG46582V enables the designer complete control over their bias circuit and uses a minimum number of external components. This saves the designer both board space and cost.

The BOM for the circuit is shown in Table 1 along with manufacturer part numbers and Digi-Key part numbers (where available).

Table 1: The BOM for the Circuit

RefDes	Value	Manufacturer	Manufacturer Part Number	Digi-Key Part Number	Quantity
C1, C2, C3, C4	4.2 μF	Samsung Electro-Mechanics	CL05A425KO5LUN C	1276-CL05A425KO5 LUNCTR-ND	4
C10, C15	措施μF	Johanson Dielectrics Inc.	500R07W102KV4T	709 - 1133 - 1和	2
C18	.01 μF	Johanson Dielectrics Inc.	500R07W103KV4T	709-1134-6-ND	1
C19	1.2 pf	Johanson Technology Inc.	500R07S1R2AV4T	712-1609-6-ND	1
C20	120 pF	Johanson Technology Inc.	501S42E121JV4E	712-1523-2-ND	1
C5, C6, C7, C8, C9, C11, C12, C13, C14, C17	0.1 μF	Johanson Dielectrics Inc.	160R07X104KV4T	709-1129-1-ND	10
D1	SMS	Skyworks Solutions Inc.	SMS3923-079LF	863-1695-6-ND	1
L1	3 nH	Johanson Technology Inc.	L-07C3N0SV6T	712-1457-6-ND	1
L2	1 uH	Johanson Technology Inc.	L-15F1R0JV4E	L-15F1R0JV4END	1
L3	1 nH	Johanson Technology Inc.	L-07W1N0CV4T	L-07W1N0CV4 T-ND	1
L4	0.68 μH	Johanson Technology Inc.	L-15FR68JV4E	L-15FR68JV4END	1
L5	560 nH	Johanson Technology Inc.	L-15FR56JV4E	L-15FR56JV4END	1
R1	432 Ohm	KOA Speer Electronics, Inc. (VA)	RK73H1ETTP4320F	2019- RK73H1ETTP4 320FCT-ND	1
R2	1.21 KOhm	KOA Speer Electronics, Inc. (VA)	RK73H1ETTP1211F	2019- RK73H1ETTP1 211FCT-ND	1
R3	Do Not Place	-			1
U1	SLG46852	yabo国际娱乐	SLG46582V		1
U2	SKY12325-350LF	Skyworks Solutions Inc.	SKY12325-350LF	863-1258-1-ND	1
U3	TSY-13LBN+	Mini-Circuits	TSY-13LNB+		1
U4	PHA-23LN+	Mini-Circuits	PHA-23LN+		1

Note: Values were copied from the Mini-Circuits data sheets for both amplifiers.