Sony Ericsson Mobile Communications Inc. TR-505-A2 Manuale Utente
DM15/25 Integrator’s Manual
30 OF 38
6.4.5
Loudspeaker path
An application using the analog
audio interface must re-reference the
AFMS-signal from AGND to its own
internal BIAS. The figure shows a
differential implementation. C1 is
chosen to create the correct HP
frequency response. R1 and R2
determine the gain, and C2 and R2
determine the LP frequency
response.
audio interface must re-reference the
AFMS-signal from AGND to its own
internal BIAS. The figure shows a
differential implementation. C1 is
chosen to create the correct HP
frequency response. R1 and R2
determine the gain, and C2 and R2
determine the LP frequency
response.
6.4.6
Antenna connector
The antenna connector is the hub for transmission of the Radio Frequency (RF) signals from the DM-15/DM-25
module to the external antenna. The antenna connector of the module is surface mounted, micro miniature
snap-on MA/-COM connector (P/N 2367-5002-54). A wide variety of compatible mating connectors are
available. Pigtail assembly (P/N 9960-2100-24), and the inter-series cable assembly (P/N 9960-4100-XX) from
M/A-COM are two options using pre-assembled cables. Another mating option is a right angle crimp jack from
M/A-COM that uses standard RG-type coaxial cable. Custom cables assemblies can be manufactured to
individual requirements using standard off-the-shelf coaxial cable and mating connectors (TNC, SMA, etc.) with
either RG-178 or RG-316 size M/A-COM connectors. Since the mating connector can rotate through 360
module to the external antenna. The antenna connector of the module is surface mounted, micro miniature
snap-on MA/-COM connector (P/N 2367-5002-54). A wide variety of compatible mating connectors are
available. Pigtail assembly (P/N 9960-2100-24), and the inter-series cable assembly (P/N 9960-4100-XX) from
M/A-COM are two options using pre-assembled cables. Another mating option is a right angle crimp jack from
M/A-COM that uses standard RG-type coaxial cable. Custom cables assemblies can be manufactured to
individual requirements using standard off-the-shelf coaxial cable and mating connectors (TNC, SMA, etc.) with
either RG-178 or RG-316 size M/A-COM connectors. Since the mating connector can rotate through 360
o
, the
application developer has maximum flexibility for routing the RF coax assembly. The total height of the mated
pair using M/A-COM pre-assembled RF connectors is 0.12 inches. The mated pair height using the right angle
crimp jack is approximately 0.290 inches. Physical dimensions of the two module connector types are shown
below. The pigtail and the right angle crimp.
pair using M/A-COM pre-assembled RF connectors is 0.12 inches. The mated pair height using the right angle
crimp jack is approximately 0.290 inches. Physical dimensions of the two module connector types are shown
below. The pigtail and the right angle crimp.
The physical dimensions of the connector are shown in the drawing below.
Electrical performance parameters are valid only when the terminating impedance at the output of the antenna
connector exhibits a VSWR of less than 2:1 for all phase angles in the frequency band of operation. High
VSWR loads at the antenna connector adversely affect current consumption, linearity, and power efficiency of
the module and may prevent operation or cause internal damage.
The RF performance of the DM-15/DM-25 meets the requirements of the TIA/EIA-136-270-B specification.
connector exhibits a VSWR of less than 2:1 for all phase angles in the frequency band of operation. High
VSWR loads at the antenna connector adversely affect current consumption, linearity, and power efficiency of
the module and may prevent operation or cause internal damage.
The RF performance of the DM-15/DM-25 meets the requirements of the TIA/EIA-136-270-B specification.
Pigtail Assembly
Right Angle Crimp Jack
.152
(3.86)
.223
(5.66)
0
-
+
0
R1
>=10k
R1
>=10k
R2
R2
C1
C1
C2
C2
BIAS
AFMS
AGND
Internal App +
Internal App -