TEA7540 ST Microelectronics, Inc., TEA7540 Datasheet - Page 10

• Manufacturer Part Number: TEA7540
• Description: Handsfree Controller
• Manufacturer: ST Microelectronics, Inc.

TEA7540
Figure 11: Test Configuration
V
pin 7 is forced to idle mode after that the two compressor have been
forced at maximum gain by V11 and V17
Input signal on pin 4 VATTE = 200mVpp
Rpin24 = 11K
ATE6 = 20log(VOUTE / VATTE)
Figure 13: Test Configuration
V
pin 17 is forced to 100mV to force the receive mode
VTIM_R voltage on pin 7
ITIM_R current through the mA
10/13
+
+
= 3V
= 3V
Figure 12: Test Configuration
V
pin 11 is forced to 100mV to force the transmit mode
VTIM_E voltage on pin 7
ITIM_E current through the mA
Figure 14: Test Configuration
V
pin 7 is forced to receive mode
Input signal pin 25: VATTR = 200mVpp
Rpin23 = 9K
ATRV OL = 20log(VOUTR / VATTR)
+
+
= 3V
= 3V