U4311B-FS Datasheet, PDF (2/13 Pages) ATMEL Corporation – Low-Current Superhet Remote Control Receiver

U4311B-FS
Pin Description
OP_in+ 1
OP_out 2
RC_wake 3
n.c. 4
GND2 5
Comp_out 6
RC– 7
n.c. ⁸
RC+ ⁹
n.c. 10
20 OP_in–
19 VS
18 FM_out
17 V_Ref
16 Discr
15 GND1
14 n.c.
13 SW_out
12 IF_in
11 AM_out
12649
Figure 2. Pinning
Pin Symbol
Function
1
OP_in+ OP amplifier non-inverted input
2
OP_out OP amplifier output
3
RC_wake RC wake–up reset time
4
n.c. Not connected
5
GND2 Ground of the logical circuits
6 Comp_out Comparator output
7
RC– Comparator time constant
8
n.c. Not connected
9
RC+ Comparator time constant
10
n.c. Not connected
11
AM_out AM current output
12
IF_in IF input
13
SW_out Wake-up output
14
n.c. Not connected
15 GND1 Ground of the analog circuits
16
Discr FM discriminator tank
17
V_Ref Reference voltage
18
FM_out FM discriminator output
19
V_S Supply voltage
20
OP_in– OP amplifier inverted input
Internal connections see figures 4 to 19
Absolute Maximum Ratings
Parameters
Supply voltage
Power dissipation T_amb = 85°C
Junction temperature
Storage temperature
Ambient temperature for SSO20
Thermal Resistance
Junction ambient
Parameters
SSO20
Symbol
Value
Unit
V_S
13
V
P_tot
400
mW
T_j
125
°C
T_stg
–55 to +125
°C
T_amb
–40 to +105
°C
Symbol
R_thJA
Value
140
Unit
K/W
2 (13)
Rev. A3, 28-Sep-00