DS26524GA4 Maxim Integrated, DS26524GA4 Datasheet - Page 74
![no-image](/images/no-image-200.jpg)
DS26524GA4
Manufacturer Part Number
DS26524GA4
Description
Network Controller & Processor ICs
Manufacturer
Maxim Integrated
Datasheet
1.DS26524GA4.pdf
(273 pages)
Specifications of DS26524GA4
Part # Aliases
90-26524-GA4
- Current page: 74 of 273
- Download datasheet (2Mb)
8.11.1 LIU Operation
The analog AMI/HDB3 waveforms off of the E1 lines or the AMI/B8ZS waveform off of the T1 lines are transformer
coupled into the RTIP and RRING pins of the DS26524. The user has the option to use internal termination,
software selectable for 75Ω/100Ω/110Ω/120Ω applications, or external termination. The LIU recovers clock and
data from the analog signal and passes it through the jitter attenuation mux. The DS26524 contains an active filter
that reconstructs the analog received signal for the nonlinear losses that occur in transmission. The receive
circuitry also is configurable for various monitor applications. The device has a usable receive sensitivity of 0dB to
-43dB for E1 and 0dB to -36dB for T1, which allows the device to operate on 0.63mm (22AWG) cables up to 2.5km
(E1) and 6k feet (T1) in length. Data input to the transmit side of the LIU is sent via the jitter attenuation mux to the
waveshaping circuitry and line driver. The DS26524 drives the E1 or T1 line from the TTIP and TRING pins via a
coupling transformer. The line driver can handle both CEPT 30/ISDN-PRI lines for E1 and long-haul (CSU) or
short-haul (DSX-1) lines for T1. The registers that control the LIU operation are shown in
Table 8-35. Registers Related to Control of DS26524 LIU
Global Transceiver Control Register 2
(GTCR2)
Global Transceiver Clock Control Register
(GTCCR)
Global LIU Software Reset Register
(GLSRR)
Global LIU Interrupt Status Register
(GLISR)
Global LIU Interrupt Mask Register
(GLIMR)
LIU Transmit Receive Control Register
(LTRCR)
LIU Transmit Impedance and Pulse Shape
Selection Register (LTITSR)
LIU Maintenance Control Register (LMCR)
LIU Real Status Register (LRSR)
LIU Status Interrupt Mask Register
(LSIMR)
LIU Latched Status Register (LLSR)
LIU Receive Signal Level Register (LRSL)
LIU Receive Impedance and Sensitivity
Monitor Register (LRISMR)
Note: The addresses shown are for Framer 1. Addresses for Framers 2 to 4 can be calculated using the following framer: Framer n = (Framer 1
address + (n - 1) x 200h); where n = 2 to 4 for Framers 2 to 4.
REGISTER
ADDRESSES
FRAMER
74 of 273
1000h
1001h
1002h
1003h
1004h
1005h
1006h
1007h
0FBh
0FEh
0F2h
0F3h
0F5h
Global transceiver control.
MPS selections, backplane clock
selections
Software reset control for the LIU.
Interrupt status bit for each of the 4 LIUs.
Interrupt mask register for the LIU.
T1/J1/E1 selection, output tri-state, loss
criteria.
Transmit pulse shape and impedance
selection.
Transmit maintenance and jitter
attenuation control register.
LIU real-time status register.
LIU mask registers based on latched
status bits.
LIU latched status bits related to loss, open
circuit, etc.
LIU receive signal level indicator.
LIU impedance match and sensitivity
monitor.
FUNCTION
Table
8-35.
Related parts for DS26524GA4
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![ds26524](/images/no-image3.png)
Part Number:
Description:
Ds26524 Quad T1/e1/j1 Transceiver
Manufacturer:
Maxim Integrated Products, Inc.
Datasheet:
![DS26](/images/no-image3.png)
Part Number:
Description:
power light source LUXEON Collimator
Manufacturer:
LUMILEDS [Lumileds Lighting Company]
Datasheet:
![MAX3261CCJ](/images/manufacturer_photos/0/4/417/maxim_integrated_products_tmb.jpg)
Part Number:
Description:
Single +5V, fully integrated, 1.25Gbps laser diode driver.
Manufacturer:
Maxim Integrated Products
Datasheet:
![MAX3263CAG](/images/manufacturer_photos/0/4/417/maxim_integrated_products_tmb.jpg)
Part Number:
Description:
Single +5V, fully integrated, 155Mbps laser diode driver.
Manufacturer:
Maxim Integrated Products
Datasheet:
![MAX7528KCWP](/images/manufacturer_photos/0/4/417/maxim_integrated_products_tmb.jpg)
Part Number:
Description:
MAX7528KCWPMaxim Integrated Products [CMOS Dual 8-Bit Buffered Multiplying DACs]
Manufacturer:
Maxim Integrated Products
Datasheet:
![MAX8809AETL+](/images/manufacturer_photos/0/4/417/maxim_integrated_products_tmb.jpg)
Part Number:
Description:
VRD11/VRD10, K8 Rev F 2/3/4-Phase PWM Controllers with Integrated Dual MOSFET Drivers
Manufacturer:
Maxim Integrated Products
Datasheet:
![MAX1535CETJ+T](/images/manufacturer_photos/0/4/417/maxim_integrated_products_tmb.jpg)
Part Number:
Description:
Highly Integrated Level 2 SMBus Battery Chargers
Manufacturer:
Maxim Integrated Products
Datasheet:
![DS2741N+](/images/manufacturer_photos/0/4/417/maxim_integrated_products_tmb.jpg)
Part Number:
Description:
Current Monitor and Accumulator with Integrated Sense Resistor; ; Temperature Range: -40°C to +85°C
Manufacturer:
Maxim Integrated Products
![MAX13450EAUD+T](/images/manufacturer_photos/0/4/417/maxim_integrated_products_tmb.jpg)
Part Number:
Description:
TSSOP 14/A/RS-485 Transceivers with Integrated 100O/120O Termination Resis
Manufacturer:
Maxim Integrated Products
![MAX13451EAUD+T](/images/manufacturer_photos/0/4/417/maxim_integrated_products_tmb.jpg)
Part Number:
Description:
TSSOP 14/A/RS-485 Transceivers with Integrated 100O/120O Termination Resis
Manufacturer:
Maxim Integrated Products
![MAX17497BATE+](/images/manufacturer_photos/0/4/417/maxim_integrated_products_tmb.jpg)
Part Number:
Description:
QFN 16/A/AC-DC and DC-DC Peak-Current-Mode Converters with Integrated Step
Manufacturer:
Maxim Integrated Products
![MAX17502FATB+T](/images/manufacturer_photos/0/4/417/maxim_integrated_products_tmb.jpg)
Part Number:
Description:
TDFN/A/65V, 1A, 600KHZ, SYNCHRONOUS STEP-DOWN REGULATOR WITH INTEGRATED SWI
Manufacturer:
Maxim Integrated Products
![MAX1978EVKIT](/images/manufacturer_photos/0/4/417/maxim_integrated_products_tmb.jpg)
Part Number:
Description:
Integrated Temperature Controller f
Manufacturer:
Maxim Integrated Products
![MAX2606EUT+](/images/manufacturer_photos/0/4/417/maxim_integrated_products_tmb.jpg)
Part Number:
Description:
SOT23-6/I/45MHz to 650MHz, Integrated IF VCOs with Differential Output
Manufacturer:
Maxim Integrated Products